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What is the velocity of a 400 kg car that has 5000 joules of energy?
Wiki User
∙ 13y ago
We'll assume that the 5,000 joules represents all Kinetic Energy of the car's motion,
and there's no potential energy, energy stored in the battery, or gas-in-the -tank
energy included in that number.
Kinetic Energy = (1/2) (m) (V2)
V2 = 2 KE / m
V = sqrt( 2 KE / m ) = sqrt( 10,000 / 400 ) = sqrt(25) = 5 meters per second
Wiki User
∙ 13y ago
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What is the kinetic energy of an object that has a mass of 30 kilograms and moves with a velocity of 20 miles per second?
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What is the kinetic energy of a 10 kg bike that is moving at a velocity of 20.0 meters per second?
KE = 1/2mass velocity squared KE = 1/2mV^2 80 J = 1/2(10 kg)V^2 multiply through by 2 160 = 10V^2 divide by 10, both sides 16 = V^2 take square root each side and discard negative answer Velocity = 4 m/s
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400 mL
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1,000 J
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400 joules.
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A pendulum has a mass of 15kg and its kinetic energy is 400 joules at the base of the swing what is the pendulums velocity?
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