Directions : In the following question more than one of the answers given may be correct. Select the correct answer and mark it according to the code:
When a bicycle is in motion, the force of friction exerted by the ground on the two wheels is such that it acts (1) in the backward direction on the front wheel and in the forward direction on the rear wheel (2) in the forward direction on the front wheel and in the backward direction on the rear wheel (3) in the backward direction on both front and rear wheels (4) in the forward direction on both front and rear wheelsA) 1, 2 and 3 are correct.
B) 1 and 2 are correct.
C) 2 and 4 are correct.
D) 1 and 3 are correct.
Correct Answer: D
Solution :
In cycling, the rear wheel moves by the force communicated to it by pedalling white front wheel moves by itself. So, while pedalling a bicycle, the force exerted by rear wheel on ground makes force of friction act on it in the forward direction (like walking) front wheel moving by itself experience force of friction in backward direction.
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