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in Physics by (86.4k points)
Two block `A` and `B` of masses `1kg` and`2kg` respectively are connected by a string, passing over a light frictionless pulley as shown. Another string connect the center of pulley. Both the blocks are resting on a horizontal floor and the pulley is help such that string remains just taut. At moment `t = 0`, a force `F = 20 t` starts acting on the pully along vertically upwards direction as shown in figure.Calculate
image
(a) velocity of `A` when `B` loses contact with the floor.
(b) height raised by the pulley upto that instant.
(Take =`g =10 m//s^(2))`

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1 Answer

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by (79.2k points)
Correct Answer - `[5 m//s, 5//6 m]`

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