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A car increases its speed, changing its kinetic energy from 60,000 J to 80,000 J. Assuming no friction, how much work is done by the car’s engine to cause this change? A.0.75 J B.1.33 J C.20,000 J D.140,
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30 votes
30 votes
A car increases its speed, changing its kinetic energy from 60,000 J to 80,000 J. Assuming no friction, how much work is done by the car’s engine to cause this change?

A.0.75 J

B.1.33 J

C.20,000 J

D.140,000 J

User Arnaud Fouchet
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1 Answer

20 votes
20 votes
B.1.33 J is the answer
User Fyodor
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