A 20 kg block placed on a level frictionless surface is attached to a cord which passes over two small frictionless pulleys,as s

A 20 kg block placed on a level frictionless surface is attached to a cord which passes over two small frictionless pulleys,as shown in figure-2.167,to a hanging block originally at rest 1m above the floor. If the hanging block strikes the floor 2 s after the system is released, the weight of the hanging block is :

A. 3.5 N
B. 5.27 N
C. 5.4 N
D. 10.54 N

A 20 kg block placed on a level frictionless surface is attached to a cord which passes over two small frictionless pulleys,as shown in figure-2.167,t

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