When the handle on a car jack is pushed through 40 cm, the 10,000-N car is...
When the handle on a car jack is pushed through 40 cm, the 10,000-N car is lifted 0.8 cm' Find (a) the work done on the car, (b) the force exerted on thejack handle, assuming no losses, and (c) the mechanical
advantageMA = Fs1,7/Fn, and show that this has the expected value'
Homework Answers
(a) Work = force * distance = 10000* 0.8/100 = 80 J
(b) work = force * distance
80 = force * 40/100
force = 200 N
(c) MA = 10000/200 = 50
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