A body needs a force F, just to start motion on a
surface, a force F, to continue its motion and a
force Fto roll on the surface. What is (i) the static
friction (ii) sliding friction and (iii) rolling
friction ? State whether F, is equal, less than or
greater than (i) F, and (ii) Fz.
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Answer:
F is greater than Fz. iziisjs
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