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An Idea for Cycle Rickshaw

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Sumit Asks:

Sir,
   While seeing a rickshaw puller struggling to pull heavy weight,I wondered if the load carried by him can be reduced for carrying same weight people.Since the load carried by him is dependent on the horizontal component of frictional force (i.e,µ.mgsinØ) ,cant we apply a spring in the rickshaw so that the effective weight will decrease and hence the load carried by him?

Comments

  1. adding a spring would never decrease the effective weight. can you brief me mathematically how would spring decrease the weight ?

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