FrictionMedium
Question
A block of mass 15 kg is placed on a long trolley. The cofficient of friction between the block and trolley is 0.18. The trolley accelerates from rest with 0.5 m/sec2 for 20 sec. then what is the friction force:-
Options
A.3.5 N
B.133.3 N
C.7.5 N
D.N. O. T.
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