Year: 2018
Topic: Work, Energy, and Power
Time :
1.
A body initially at rest and sliding along a frictionless track from a height h (as shown in the figure) just completes a vertical circle of diameter AB = D.The height h is equal to
(1). \(\displaystyle \frac{3}{2} D\)
(2). \(\displaystyle D\)
(3). \(\displaystyle \frac{7}{5} D\)
(4). \(\displaystyle \frac{5}{4} D\)
