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| 1. |
Given reasons for f_(s)=mu_(s)N |
| Answer» SOLUTION :It isnot avectorequation. THERELATION`f_(s)= mu_(s)N` is NOTA vectorrelation . Thisisbecausethe normalforceN and `f_(s)` are notinthe samedirectioneventhough`f_(s)` is equal to`mu_(s)` timesthe NORMALFORCE. thisis alsotruein the caseof KINETICFRICTION . | |