A 1.50 multiplied by 103kg car starts from rest and, Ask an Expert

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Q1. If a flea can jump straight up to a height of 0.40, what is its initial speed as it leaves the ground?
Take the free fall acceleration to be = 9.80

Q2. A 1.50 multiplied by 103kg car starts from rest and accelerates uniformly to 18.50m/s in 13s. Assume that air resistance remains constant at 400N during this time.

(a) Find the average power developed by the engine.

(b) Find an instantaneous power output of the engine at t = 13s, just before the car stops accelerating.

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