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3 years ago

10

A car moves at a speed of 50 kilometers/hour. Its kinetic energy is 400 joules. If the same car moves at a speed of 100 kilomete

rs/hour, the its kinetic energy will be joules. The braking at the faster speed is the breaking distance at the slower speed.

1 answer:

lys-0071 [83]3 years ago

8 0

ke prop to v^2

ke1/v1^2=ke2/v2^2

400/50x50=joules/100x100

400x2x2

1600j

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