1.

In the pulley system shown the movable pulleys A,B and C have mass m each, D and E are fixed pulleys. The strings are vertical, light and inextensible. Then Pulleys A and B have acceleration each in downward direction and pulley C have acceleration in upward direction Then the value of N ispls follow me also

Answer»

ANSWER:

the tension throughout the string is the same and equals T=2mg3 .

pulleys A and B have ACCELERATION g3 each in downward DIREACTION and PULLEY C has acceleration g3 in wpward direaction .

pulleys A,B and C all have accleration g3 in downward direction .

pulley A has acceleration g3 in downward direction and pulleys B and C have acceleration g3 each in upward direction .

Answer :

A::B::D

Solution :

Let T be the tension in string.

−2TaC+TaB−TaA=0

aa+2aC=aB…..(i),mg−2T=maC….(II)

T−mg=maB…..(ii),mg−T=maA….(iv)



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