A car is travelling at a speed of 20m/s and has a mass of 1200 kg. How much kinetic energy does it have?
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Answered by
2
I'm going to assume that by speed, you meant velocity.
The formula for KE is KE=1/2mv^2 .
So input the values we know:
KE=1/2×1200×20^2
KE=1200⋅400/2
KE=480000/2
KE=240000
The unit for energy is Joules( J ) so the kinetic energy of the car is
240000J
Answered by
3
Waah!
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