Homework Help: Physics

Posted by Sierra on Wednesday, July 11, 2012 at 11:49am.

A rock of mass 0.086 kg is thrown upward with an initial speed of 13 m/s. Find the work done by gravity on the rock from the time it leaves the thrower's hand until it reaches the highest point on its trajectory. Hint: You do not have to calculate the rock's maximum height.

Physics - Elena, Wednesday, July 11, 2012 at 1:30pm
W(gravity)=ΔPE=ΔKE=
KE2-KE1=0-mvₒ²/2= - 0.086•13²/2=...

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