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What is the mass if a car is traveling at 30 meters per second with a kinetic energy of 900 kilojoules?
Wiki User
∙ 15y ago
Momentum (p) is the product of mass (m) and velocity (v). Plug your known values into p = m x v and you've got p = 910 kg x 13.3 m/sec The calculator says 12,103 kg - m/s which is 12,103 Newton seconds. Note: Momentum usually refers to linear momentum, or movement in a line. Additionally, momentum is a vector quantity. It has direction associated with it, and we've left it off the above calculations because it (the direction) wasn't specified.
Wiki User
∙ 15y ago
Wiki User
∙ 15y agoThe formula for kinetic energy is 0.5mv2 where m is the mass and v is the velocity of the object. according to the question... 900000J = 0.5m x (30)2 multiply both sides by 2 to get rid of the 0.5 1800000 = m x 900 divide both sides by 900 2000Kg = m The object has a mass of 2 tonnes or 2 x103 Kilograms
Wiki User
∙ 13y agoKE =1/2mass * velocity squared
KE = 1/2mV^2
400 Joules = 1/2(m)(30m/s)^2
0.444444444 = 1/2(m)
0.9 kilograms = mass
Wiki User
∙ 12y agoMass= 75
jyclangford@yahoo.co...
12,100
Anonymous
75
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What If you have four balls all traveling at 5 meters per second which one has the most kinetic energy?
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Which has the most kinetic energy a 1000 kg car traveling 30 ms or a car traveling 45 ms?
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If you have a 2kg pendulum bob that is 6 meters above the ground at its high point and 1 meter at its low point how can you figure the kinetic energy?
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What If you have four balls all traveling at 5 meters per second which one has the most kinetic energy?
If several objects have the same speed and the same velocity,then each has the same 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.
A 5kg object is being lifted to a height of 8 meters and is dropped what is the kinetic energy of the object at 2 m?
After falling 6 meters, potential energy corresponding to those 6 meters will be converted to kinetic energy. The potential energy (for the 6 meters) is mgh = (5 kg)(9.82 m/s2)(6 m) = 294.6 J, so that is also the kinetic energy, since potential energy has been converted to kinetic energy.After falling 6 meters, potential energy corresponding to those 6 meters will be converted to kinetic energy. The potential energy (for the 6 meters) is mgh = (5 kg)(9.82 m/s2)(6 m) = 294.6 J, so that is also the kinetic energy, since potential energy has been converted to kinetic energy.After falling 6 meters, potential energy corresponding to those 6 meters will be converted to kinetic energy. The potential energy (for the 6 meters) is mgh = (5 kg)(9.82 m/s2)(6 m) = 294.6 J, so that is also the kinetic energy, since potential energy has been converted to kinetic energy.After falling 6 meters, potential energy corresponding to those 6 meters will be converted to kinetic energy. The potential energy (for the 6 meters) is mgh = (5 kg)(9.82 m/s2)(6 m) = 294.6 J, so that is also the kinetic energy, since potential energy has been converted to kinetic energy.
What is the mathmetical formula for kinetic energy?
Kinetic Energy = 1/2(mass in kilograms)(meters per second)2
What is the energy of a system 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.
Which has the most kinetic energy a 1000 kg car traveling 30 ms or a car traveling 45 ms?
WOW, 5 MILES PER SECOND. I guess that I would have to calculate the miles per hour. To do this, we must multiply 5 miles per second times 3600(the number of seconds in an hour). That is 18000 miles per hour. I like to work in the SI system, so by converting this to meters per second, we get 8.04672E3 meters per second. Kinetic energy is defined as one half mvsquared. The Kinetic Energy is equal to 3.2374E10 Joules.
Is touching a kinetic energy?
Kinetic energy is the energy of motion. Your touching finger has mass and is moving some meters per second, so that motion is kenetic energy.
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 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 .
What is her kinetic energy if her mass is 70 kg and she is traveling at a rate of 6 meters per second?
Kinetic Energy = 1/2 mass kg * Velocity squared KE = 1/2mV^2 KE = 1/2(70 kg)(6 m/s)^2 = 1260 Joules
How many joules of kinetic energy does a 750 kg car traveling at 65 mi hr have. By what factor would its kinetic energy decreases if the car travel half as fast?
For this question, we will use the formula K = 1\2 mv2. But first, we must convert the 65 miles per hour into meters per second. Multiply miles per hour by a factor of 1.609 to get kilometers per hour. Divide this answer by 3600 to get kilometers per second. Multiply this by 1000 to get meters per second. In this case, the velocity in meters per second is aproxamitely 29 meters per second. To get the kinetic energy, we multiply one half, times the mass 750 kg, times 292 meters per second. This yields 315375 Joules. If we halved the velocity, the kinetic energy would be one-fourth that of the original kinetic energy. This is because the velocity is squared. This holds true if we go to one third the original speed. Then it would be one-ninth of the original kinetic energy.
Is kinetic energy the same as static energy?
No, Potential Energy is the energy of an object that has the potential to move while kinetic energy is the energy of an object at motion. Potential energy is defined by Mass * Gravity(9.81ms-2) * height(In meters) Kinetic energy is defined by (1/2)*Mass*Velocity2
