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A 100.0 kg ball has a velocity of 0 m per sec It is pushed until the velocity is 25 m per sec How much work was done to the car?
Wiki User
∙ 14y ago
No work was done to the car. All of your effort was spent pushing the ball.
You pushed it until its speed was 25 m/s. Its kinetic energy is then (1/2) (m) (v)2 = 50 x 625 = 31,250 joules.
That's the work that you put into the ball. The car is still just sitting there.
Wiki User
∙ 14y ago
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