This is аn оriginаl exаm questiоn by Prоf Kay Han. It is forbidden to photograph, upload, download, copy or share this problem with anyone, or to post it onto any website. A block slides down from the following wedges from rest. Each wedge has the same vertical height h. Consider friction and air resistance, Which one has the lowest velocity when the block reaches to the bottom?
This is аn оriginаl exаm questiоn by Prоf Kay Han. It is forbidden to photograph, upload, download, copy or share this problem with anyone, or to post it onto any website. Benny jump from the diving board to the pool of water below. On the way down, the mechanical energy