Question

A motor cycle is going on an overbridge of
radius R. The driver maintains a constant speed. As the
motor cycle is ascending on the overbridge, the normal force
on it
(a) increases (b) decreases
(c) remains the same (d) fluctuates erratically

Answer 1

Answer:

increases (b) decreases

(c) remains the same (d) fluctuates erratically

Explanation:

option a is your answer mate hope you understand mate

Answer 2

Answer:

hope you got this answer...

Explanation:

From figure reaction of normal force on the motor cyclist

mgcosθ−R=

r

mv

2

R=mgcosθ−

r

mv

2

As motorcycle ascend on the over bridge, angle of inclination of motorcycle with vertical decreases and becomes zero at at the highest point so

′

cos θ

′

goes on increasing and becomes 1 at highest point value of R is continuously increasing while ascending.