Question

2. A body of mass m and radius R rolling horizontally without slipping at a speed v climbs a
ramp to a height 3v²/4g. The rolling body can be
(a) a sphere
(b) a circular ring
(c) a spherical shell
(d) a circular disc​

Answer 1

Answer:

b

is the correct answer

Answer 2

Answer:

a)circular disc

by energy conservation:KE OF body=PE OF BODY AT A HT

KE=m*g*h;

for disc ,KE=3/4*m*v^2

hence h=3/4*v^2/g