A 15kg object falls a distance of 5.0 meters. How much work does gravity do on...
A 15kg object falls a distance of 5.0 meters. How much work does gravity do on the object during this motion? Use the work-energy principle (from chapter 6- NO POTENTIAL ENERGY) to determine the speed of the object just as it reaches the ground. Assume there is no air resistance and the object starts from rest.
Homework Answers
Work energy theoram
Mgh( work done by gravity) = 1/2*mv^2, mgh=15*9.81*5=735.75joule
V^2=2gh=
V=9.9m/s
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