When a cycle is moving from east to west, what is the direction of frictional force on its wheels due to ground?
Correct Answer : a ) East to westExplanation :
To analyse the frictional force on the wheels due to the ground, we need to consider the point of contact between wheel and ground. The point of contact of wheel is moving from west to east with respect to the ground and therefore, to oppose the relative motion, the frictional force on the point of contact due to ground will be from east to west.
Hence, (a) is the correct answer.
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