Kinematics Question 719

Question: A motor cyclist moving with a velocity of 72 km/hour on a flat road takes a turn on the road at a point where the radius of curvature of the road is 20 meters. The acceleration due to gravity it’s 10 m/sec2. In order to avoid skidding, he must not bend with respect to the vertical plane by an angle greater than[CPMT 1986]

Options:

A) θ=tan16

B)θ=tan12

C) θ=tan125.92

D)θ=tan14

Show Answer

Answer:

Correct Answer: B

Solution:

v=72km/hour=20m/sec

θ=tan1(v2rg)=tan1(20×2020×10)=tan1(2)



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