In 0.181s through a distance of 8.05 m a test pilots speed, Ask an Expert

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Q. Solve problems correctly.

1.If 2.13 X 106 of work must be done on a roller-coaster car to move it 3.00 X 102 m, how large is the net force acting on the car?

2.A force of 715 N is applied to a roller-coaster car to push it horizontally. If 2.72 X 104 J of work is done on the car, how far has it been pushed?

3.In 0.181 s, through a distance of 8.05 m, a test pilot's speed decreases from 88.9 m/s to 0 m/s. If the pilot's mass is 70.0 kg, how much work is done against his body?

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