A Small 14-N Stone Slides Down a Frictionless Bowl, Starting from Rest

Multiple Choice

A small 1.4-N stone slides down a frictionless bowl, starting from rest at the rim. The bowl itself is a hemisphere of radius 75 cm. Just as the stone reaches the bottom of the bowl, how hard is the
Bowl pushing on it?

A) 2.8 N
B) 5.6 N
C) 4.2 N
D) 0.70 N
E) 1.4 N