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Answer= 5703.55 Joules (see below for explanation)
So Kinetic energy= 0.5 mv2
Unit-wise 1 Joules = 1 kg m2s-2
Therefore we need to convert 66mph -
1 mph= 1.61 km/h
66mph=106.22 km/h= 29.51 m/s =v OR (106.22 x 1000)/(60x60)
Also need convert 850lbs to kg-
1kg= 2.2 lbs
1/2.2 kg = 1 lb
Therefore 850 lbs= 1/2.2 x 850= 386.55 kg= m
Back to the original equation KE= 1/2 mv2
= 0.5 x 386.55 x 29.51
= 5703.55 Joules = 5.7 KiloJoules
What else can I help you with?
What is a measure of average kinetic energy of a group of molecules?
The temperature of a sample of nitrogen gas is a measure of the molecules' average # activation energy # potential energy # kinetic energy # ionization energy Answer 3 Reason Temperature measures average kinetic energy.
Does the faster your car moves the less kinetic energy it has?
no that is not true everybody knows that when something is moving it has k.e , wich means that it has kinetic energy and when is not moving its p.e potential energy so I dont see how acar has the less k.e when its moving the answers is it has the less p.e
Which examples illustrates an object with kinetic energy?
A skateboard rolling across the street A hockey puck sliding across the ice
What 2 factors does the kinetic energy depend on?
It depends on mass and velocity. ans : it depends on the mass & speed of the moving object. no, it depends on the work & energy.
What is the kinetic energy of a baseball moving at a speed of 40ms if the baseball has a mass of 0.15 kg?
Kinetic energy is... EK = 0.5 M V2 ...where EK is energy in joules, M is mass in kg and V is velocity in m s-1. Plugging in the knowns, we get 108 = (0.5) (0.146) V2 Solving for V, we get V = 38.5 m s-1
What is the energy of a moving object due to its motion?
Energy related to motion is called "kinetic energy".
What units are kinetic energy measured in?
To measure kinetic energy:Let us suppose an object of mass m moving wtih velocity vKinetic Energy of that object= mv2/2
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?
When the velocity is tripled to 15 meters per second, the kinetic energy will increase by a factor of 9 (3^2) since kinetic energy is proportional to the square of velocity. So, the kinetic energy will be 225 joules (25 * 9) when the velocity is tripled.
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.
Which has most kinetic energy?
a 250 kg motorcycle moving at a speed of 45 m/s
What type of energy is contained in a moving bullet?
velocity Kinetic energy is equal to (1/2)mv2, where m is mass and v is velocity. Higher velocities contribute even more to higher kinetic energies than higher masses since velocity is squared in the equation. For comparison, a 6.35 kg bowling ball moving at 7.6 m/s will have a kinetic energy of 183.4 Joules. A 0.02 kg bullet moving at 200 m/s will have a kinetic energy of 400 Joules. (Increase that to 300 m/s, and the kinetic energy moves up to 900 Joules.)
If an object weighing 90 kilograms and moving with a velocity of 20 meters per second has a kinetic energy of 4500 Joules. what is its kinetic energy when the velocity is 32 meters per second?
Kinetic energy is directly proportional to the square of velocity, so the kinetic energy will increase. If the velocity increases from 20 m/s to 32 m/s, the kinetic energy will increase by a factor of (32/20)^2 = 2.56. Therefore, the kinetic energy will be 4500 Joules * 2.56 = 11520 Joules when the velocity is 32 m/s.
A slow moving car may have more Kinetic Energy than a fast moving motorcycle How is it possible?
A slow moving car may have more kinetic energy than a fast moving motorcycle if the car has a greater mass. Kinetic energy is proportional to both mass and velocity, so a higher mass can compensate for a lower velocity in terms of total kinetic energy.
Which has greater potential energy a moving dump truck in a road or a steady motorcycle in rooftop why?
Give them both the same units first:Say the motorcycle is 3 metres (h) above the ground, and weighs 200 kg(m), take acceleration due to gravity (g) @ 10 m/s2, its potential energy ism*g*h = 200 * 10 * 3 = 6000 joules potential energy, this will translate to kinetic energy while it falls, so its kinetic energy will be 6000 joules on impact.Now take a 5 Tonne truck (5000 kg) @ 30 mph ( 13 m/s), its kinetic energy= 0.5 * mass * velocity2 = 0.5 * 5000 * 169 = 422500 joules
Calculate the kinetic energy in joules of a 1500 kg car moving at 29ms?
The formula for kinetic energy is KE = 0.5 * mass * velocity^2. Plugging in the values, KE = 0.5 * 1500 kg * (29 m/s)^2 = 634,500 Joules.
Which is example of kinetic energy?
Any moving object has kinetic energy.
What is the kinetic energy of an object with a mass of 125 kg, moving at 60 m/s?
225,000 Joules
