First slide

Vertical circular motion

Question

A vehicle is moving with uniform speed along horizontal, concave and convex surface roads. The surface on which, the normal reaction on the vehicle is maximum is

Easy

A

Concave
B

convex
C

Horizontal
D

Same at all surfaces

Solution

N = Mg cos $θ$ + $\frac{M V^{2}}{R}$ At the highest position $θ = 180^{0}$
so N =Mg + $\frac{M V^{2}}{R}$ for concave surface $θ = 0^{0}$

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