10. Two identical blocks are pulled along a rough surface as suggested in the fi

Question

10. Two identical blocks are pulled along a rough surface as suggested in the figure Which one of the following statements is false? a) The coefficient of kinetic friction is the same in cach case. b) A force of the same magnitude is needed to keep each block moving. c) The normal force exerted on the blocks by the surface is the same for both blocks. d) A force of the same magnitude was required to start each block moving. c) The magnitude of the force of kinetic friction is greater for the block on the right.

Explanation / Answer

Frictional force only depends on normal reaction and coeficient of friction

It doesnt depend on area

Normal reaction is same in both the cases

so answer

e) magnitude of force of kinetic friction is greater for the block on right

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