Rahul goes to school daily on his cycle. It is his daily observation that he needs to apply more force to start the cycle to move, as compared to when the cycle is in motion. Explain.
this is because static friction>sliding friction>rolling friction.
as the irregularities are interlocked tightly when the cycle is not moving (static), it is tough to start it to move but when it starts moving the irregularities do not get enough time to interlock and thus it is easier to pedal it when in motion.
as the irregularities are interlocked tightly when the cycle is not moving (static), it is tough to start it to move but when it starts moving the irregularities do not get enough time to interlock and thus it is easier to pedal it when in motion.