Asked by Julie
A 40 N block lifted straight upward by a hand applying a force of 40 N has an initial kinetic energy of 12J. If the block is lifted 0.5 m, how mauch work does the hand do? What is the block's final kinetic energy?
Answers
Answered by
bobpursley
work=force*distance
FinalKe=InitialKE+workdone-changePE
Looks like the finalKE is the same as initial KE.
FinalKe=InitialKE+workdone-changePE
Looks like the finalKE is the same as initial KE.
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