a block of mass 2kg moves on a frictionless inline (none of the forces on the block are shown). its initial velocity is v initial=3m/s, and it slides a vertical distance h=10m up the slope and its final velocity is v final=2m/s. find the external work done on the block.

Question

bobpursley · Answer

initial PE+InitialKE+Workdone=finalPE+finalKE 0+1/2 m 3^2 + workdone=mg*10 + 1/2 m 2^2 solve for work done.

S · Answer

so is it 196 or 191J?