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A small block is shot into each of the f...

A small block is shot into each of the four tracks as shown below. Each of the tracks rises to the same height. The speed with which the block enters the tracks is the same in all cases. At the highest point of the track, the normal reaction is maximum in :

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
B
Normal reaction at the highest point
`R = (mv^(2))/(r) - mg`
R is inversely proportional to the radius of curvature of path. Radius is minimum for (b)
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