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Two bodies having the same mass 5 kg each have different surface area 20 m square in 10 M per square in contact with a horizontal plane the coefficient of friction is 0.4 the force of friction that come into play when they are in motion will be in the ratio

Two bodies having the same mass 5 kg each have different surface area 20 m square in 10 M per square in contact with a horizontal plane the coefficient of friction is 0.4 the force of friction that come into play when they are in motion will be in the ratio

Grade:11

1 Answers

Himanshu Rathour
119 Points
5 years ago
Normal reaction exerted by plane on each body=N=mg=5g
Friction force exerted by plane on each body=uN=0.4(5g)...(1)
From 1 we can see that friction force does not depend on surface area
Therefore ratio of friction on each body=1
 
 

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