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A car with a mass of 1180 kilograms is being driven at 18.2 meters per second when it runs into a tree. What is the change in kinetic energy of the car? Include units in your answer. Answer must be in
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16 votes
A car with a mass of 1180 kilograms is being driven at 18.2 meters per second when it runs into a tree. What is the change in kinetic energy of the car? Include units in your answer. Answer must be in 3 significant digits.

User Yakxxx
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1 Answer

15 votes
15 votes

The kinetic energy formula is


K=(1)/(2)mv^2

Where m = 1180 kg and v = 18.2 m/s.


K=(1)/(2)\cdot1180\operatorname{kg}\cdot(18.2\cdot((m)/(s)))^2=195,431.6J

Therefore, the kinetic energy is 195,431.6 Joules.

User Sandorfalot
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