A Small 14-N Stone Slides Down a Frictionless Bowl,starting from Rest at 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) 0.70 N
B) 1.4 N
C) 2.8 N
D) 4.2 N
E) 5.6 N