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A motorcycle of mass 100kg moves round in a circle of radius 10m with a...

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Question 8

A motorcycle of mass 100kg moves round in a circle of radius 10m with a velocity of 5 ms^-1. find the coefficient of friction between the road and the tyres.

A

25

B

2.5

C

0.5

D

0.25

Explanation

Share Answer F = (mv)²/r = (100 x 5)² = 250N
R = mg = 100 x 10 - 1000N
coefficient of friction,
= (F)/R = (250)/1000 = 0.25

Correct option: D

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