1.

A body needs a force F1 just to start motion on a surface, a force F2 to continue its motion and a force F3 to roll on the surface. What is the static friction sliding friction and rolling friction ? State whether F2 is equal, less than or greater than (1) F1 and (2) F3.

Answer»

A body needs a force F1 just to start motion on a surface, a force F2 to continue its motion and a force F3 to roll on the surface. What is




  1. the static friction

  2. sliding friction and

  3. rolling friction ? State whether F2 is equal, less than or greater than (1) F1 and (2) F3.





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