Both the blocks are resting on a horizontal floor and the pulley is held such that the string remains just taut. At the moment t=0, a force F=20t N starts acting on the pulley along vertically upward direction as shown in figure. Calculate the velocity of A as B loses contact with the floor. [Take g=10 m/s2]

Both the blocks are resting on a horizontal floor and the pulley is he

1.	Both the blocks are resting on a horizontal floor and the pulley is held such that the string remains just taut. At the moment t=0, a force F=20t N starts acting on the pulley along vertically upward direction as shown in figure. Calculate the velocity of A as B loses contact with the floor. [Take g=10 m/s2]
Answer» Both the blocks are resting on a horizontal floor and the pulley is held such that the string remains just taut. At the moment $t = 0$ , a force $F = 20 t N$ starts acting on the pulley along vertically upward direction as shown in figure. Calculate the velocity of A as B loses contact with the floor. [Take $g = 10 {m/s}^{2}$ ]

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