Fig. 5.215 A block of mass 15 kg is placed on a long trolley. The coefficient of static frictionbetween the block and the trolley is 0.18. The trolley accelerates from rest with0.5 m s2 for 20 s and then moves with uniform velocity. Discuss the motion of theblock as viewed by (a) a stationary observer on the ground, (b) an observer moving withthe trolley

Fig. 5.215 A block of mass 15 kg is placed on a long trolley. The coef

1.	Fig. 5.215 A block of mass 15 kg is placed on a long trolley. The coefficient of static frictionbetween the block and the trolley is 0.18. The trolley accelerates from rest with0.5 m s2 for 20 s and then moves with uniform velocity. Discuss the motion of theblock as viewed by (a) a stationary observer on the ground, (b) an observer moving withthe trolley
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