# At what speed does a 1.00 kg mass have a kinetic energy of 1.00 joules?

Units of Joule = m*v^2/s^2 KE=0.5*m*v^2 KE = 1 J m = 1 kg 1=0.5*1*v^2 2= v^2 v=1.4 m/s

### A car has a mass of 2000 kg and is traveling at a speed of 30mpersec What is its kinetic energy in joules?

The car's kinetic energy is 900,000 joules.

### How much energy is possessed by a moving body by virtue of its motion?

That's called kinetic energy. The formula is: Kinetic energy = (1/2) x mass x velocity2. If mass is in kilograms, and velocity (or speed, really) in meters per second, the energy will be in Joules. That's called kinetic energy. The formula is: Kinetic energy = (1/2) x mass x velocity2. If mass is in kilograms, and velocity (or speed, really) in meters per second, the energy will be in Joules. That's called kinetic energy. The… Read More

### How do you compare kinetic energies on things that move?

Kinetic energy = (1/2)*mass*(speed)^2 where, in metric units, mass is in kilograms, speed is in meters/second, and kinetic energy is in Joules. So, you need to know the mass and the speed of the things.

### What is the kinetic energy of an object that has a mass of 20 kg and a speed of 2.8m per second?

The object's kinetic energy is 78.4 joules.

### Is kinetic energy measured in mass?

The kinetic energy of any moving object is 1/2 of (its mass) x (the square of its speed). The SI unit of any kind of energy is Joules.

### The amount of kinetic energy an object has depends upon?

Its mass and speed. The equation is KE = 1/2mv2. If m is mass in kg, and v is speed in m/s, then KE is kinetic energy in Joules.

### What is a kinetic energy of an object that has mass of 20 kilograms and speed of 2.8ms?

78.4 joules at 2.8m/s

### What is an object's kinetic energy if air resistance is not a factor and weighs 0.6 kg and its potential energy is 27 joules?

The object's kinetic energy can't be determined from the given information. Kinetic energy = (1/2) (mass) (speed)2 The question gives the object's mass, but we need its speed too.

### Formulas of the kinetic energy?

Ek = (1/2)mv2 Ek is the kinetic energy in joules, m is mass in in kilograms and v is speed in meters per second.

### What is the kinetic energy of a 1 kg mass that is moving with a speed of 20 ms?

200 joules at 20m/s

### Is kinetic energy the transfer of heat by direct contact of particle of matter?

Kinetic energy is the energy a moving mass has, equal to 0.5 m v^2 If the mass m is in kg and the speed v is in metres/sec, the kinetic energy will be in Joules. So a car of 1000 kg travelling at 20 m/s has a kinetic energy of 0.5*1000*400 or 200,000 Joules.

### What is the kinetic energy of a 0.06kg tennis ball traveling at a speed of 150 meters per seconds?

kinetic energy = 1/2 mass * velocity2 0.06 * 1/2 * 1502 = 675 joules of kinetic energy

### How do you calculate kinetic energy?

To calculate the kinetic energy, multiply the mass times the velocity squared and divide by 2. (Mass in kilograms, speed in meters/sec, yields energy in joules.) The equation is KE= 1/2 (mv2) Kinetic Energy= one-half (mass times velocity squared)

### What is the kinetic energy of an object that has a mass of 20 kilo grams and a speed of 2.8 ms?

The kinetic energy is 78.4 kg x m^2 / s^2, or 78.4 Joules.

### What is the kinetic energy of a baseball moving at a speed of 40ms if the baseball has a mass of 0.15 kg?

KE = mass * velocity squared KE = (0.15 kg)(40 m/s)^2 = 240 Joules of kinetic energy --------------------------------------

### If you have a mass of 60 kg and a velocity of 100 ms how much kinetic energy do you have?

KE = 1/2 mv^2 = 1/2 x 60 x 100 x 100 = 300,000 kgm^2/sec^2 = 300,000 joules

### What is the kinetic energyf a 11 kg dog running at a speed of 8.8 meters per second?

Kinetic energy = (1/2)mv2 (1/2 times mass times speed squared). Since the mass and the speed are already in standard SI units, the energy will be in joules.

### How does mass and velocity increase or decrease kinetic energy?

Kinetic energy of a mass is directly proportional to two variables: its mass and speed. Many mistake kinetic energy as being proportional to mass and velocity; it is, in fact, mass and speed. (With all technicalities aside, the speed is the factor that matters in computing kinetic energy of an object or a mass). Kinetic Energy = 0.5mv2 (m = mass and v = speed of the mass) Therefore, if the speed of the object… Read More

### What is the speed of an object increases its kinetic energy .?

Not necessarily, If the speed of the object is constant then so is the KE.

### What is the kinectic energy of a bicycle with a mass of a 14 kg traveling at a valocity of 3 ms?

Kinetic energy is half the mass times the square of the speed. Joules = (14/2) x 32 = 7 x 9 = 63 joules.

### How do you find the velocity of an object if all you have is it's kinetic energy and mass?

Kinetic energy = 1/2 (mass) (speed)2 2 x kinetic energy/mass = (speed)2 Speed = square root of ( 2 x kinetic energy/mass )

### What is the mass of a car that is traveling at a velocity of 60 meters per second north. The car has 5040000 joules of kinetic energy?

KE = 1/2 mv squared where v is velocity and m is mass. Solve m = (2 KE) divided by v squared= 2800 kg

### A girl on a motorbike passes by at a speed of 15 msec Her mass is 55kg What is her kinetic energy?

The kinetic energy of a 55 kg girl moving at a speed of 15m/s is?Ã¦ 6187.5 Joules. It is given by the formula 0.5mv^2 , where m is the mass of the body and v is its velocity.

### A bicycle going 10 ms on a flat road demonstrates energy?

The bicycle has kinetic energy. KE = (1/2) x (mass) x (speed)2 For the bike, that's (50 x mass) joules, not counting the kinetic energy of the rider.

### What are the factors in kinetic energy?

Kinetic energy = 1/2 x mass x velocity2. Mass in Kg, velocity in meters/sec, energy in Joules

### What is the kinetic energy of an object with an mass of 5 grams and a velocity of 1000ms?

The object's kinetic energy is 2,500 joules.

### Which energy might correspond to the KE of a person riding a bicycle on a road?

Kinetic energy is energy related to movement. The formula is KE = (1/2) mv2, where "v" is the speed, and "m" is the mass. If the mass is in kilograms and the speed in meters/second, the energy will be in joules.

### As the mass of an object moving at a given speed decreases its kinetic energy does what?

Kinetic energy = 1/2 * mass * speed^2 When mass decreases, kinetic energy decreases proportionally.

### How do you find the speed given joules and mass?

Use the formula for Kinetic Energy (KE), which is the energy due to the motion of an object. KE = (1/2) * (mass) * (velocity)2 where KE is in joules, mass is in kg, and velocity (or speed) would be in meters/sec...Just substitute the appropriate numbers, rearrange and solve for velocity

### Which will have the most kinetic energy?

Kinetic energy depends on both mass and speed, so an object will have a high kinetic energy if it has a high mass, a high speed, or both.

### What is the relationship between motion and energy?

The basic relationship for kinetic energy of a body is KE = Â½ m v2. If the mass is in kg and the speed in metres/sec, the answer for the KE is in Joules.

### What is the kinetic energy of a 200 grams bullet travelling at a velocity of 200 m s?

Kinetic energy = 1/2 (mass) (speed)2 = 1/2 (0.2) (200)2 = 4,000 joules

### What is the kinetic energy of a bicyclewith mass 10 kg traveling at a velocity of 3ms?

The bike's kinetic energy is 45 joules.

### What is the kinetic energy of an object that has a mass of 30 kilograms and move with a velocity of 20ms?

The object's kinetic energy is 6,000 joules.

### What is the kinetic energy of a bicycle with a mass of 14kg traveling at a velocity of 3 ms?

The bike's kinetic energy is 63 joules.

### The kinetic energy of the object moving with a velocity of 5 meter per second is 25 joules. What will be the kinetic energy when the velocity is tripled?

The object has a mass of 2kg. When velocity is tripled the kinetic energy becomes 225 joules.

### What energy depends on its speed and mass?

Kinetic energy is dependent on speed and mass. The formula for kinetic energy is (1/2)mv2, where m is mass and v is velocity.

### Who has more kinetic energy a running or walking person?

Original answer: running person ************** It depends on mass AND speed. Since energy is directly tied to MASS, then it all depends on the MASS * VELOCITY to figure which has more KINETIC ENERGY. To figure the kinetic energy in an object take 1/2 times the mass of the object times the square of the speed of the object. .5 * Mass * Velocity^2 = Energy in joules A running person has weighs 75 kilos… Read More

### What happens to kinetic energy when the mass and speed of an object changes-?

Any change in mass or speed will cause a change in kinetic energy.

### How much kinetic energy does an electron traveling in free space at 32415.926535 ms have?

You are supposed to use the formula for kinetic energy. As a reminder, the formula is (1/2)mv2. If the speed is in meters per second, and the mass in kilograms, the energy will be in joules.

### What will the kinetic energy be of an arrow after it is shot if it has a mass of 10 g and has a potential energy of 50 joules before it is shot?

If all of the potential energy is transferred to the arrow's motion as kinetic energy, then when the shot is complete and before any effect of air resistance has kicked in, its kinetic energy is 50 joules. KE = (mass) x (speed)2 50 = (.01) x V2 V = sqrt(5000) = 70.711 meters per second, as it leaves the bow. Oops! Please excuse us. We thought you were going for the arrow's speed as it… Read More

### What is the relationship between mass and kinetic energy?

Kinetic energy is the energy of motion. The amount of kinetic energy an object has depends on the mass of the object and the speed of the object. The equation is: K= (1/2)mv^2, where K=kinetic energy, m=mass, and v=speed of the object.

### Is doubling a kinetic energy source by mass bigger than when you double its speed?

Doubling the mass will double the kinetic energy. Doubling the speed will increase kinetic energy by a factor 22 = 4.

### What is the kinetic energy of an object that has a mass of 20 kg and a speed of 2 point 8 m per s?

Kinetic Energy = 1/2 m V2 = 1/2 (20) (2.8)2 = 78.4 joules

### What possesses most kinetic energy?

Kinetic energy is calculated as (1/2) x mass x speed squared, so to have a lot of kinetic energy, an object must have a large mass, a large speed, or both. Stars have tremendous amounts of kinetic energy, galaxies even more. Kinetic energy is calculated as (1/2) x mass x speed squared, so to have a lot of kinetic energy, an object must have a large mass, a large speed, or both. Stars have tremendous… Read More

### A person walking is kinetic energy?

Yes, everything with a speed and a mass has kinetic energy. This can be calculated with the formula: E = 0.5 * m * v^2 For example, if you weigh 75 kilograms and walk with a speed of 2 meters per second, you would have a kinetic energy of 150 joules. Just to put this in perspective, to warm a cup of coffee (250 grams from 25 C to 75 C) you need 52,000 joules.

### How do you calculate kinetic and potenial energy?

KE = (0.5 * mass * velocity2) joules PE = (mass * acceleration due to gravity * height it will fall) joules

### What is the speed of an object that has 7.5 joules of kinetic energy and a mass of 7.9 gr?

We know, Kinetic Energy=1/2 * mass * velocity2 Hence, velocity2 = (2*Kinetic Energy)/mass = (2*7.5joule)/(7.9gr) =(2*7.5joule)/(.0079kg)=1898.73(m/sec)2 Hence, velocity = square root of 1898.73 i.e 43.57 m/sec.

### What will be the kinetic energy and velocity of object of mass 62kg?

Its kinetic energy (in joules) will be (31) times (its velocity in meters per second)2 .