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Question: In the figure given below, if all surface are assumed to be smooth and the force F = 100N. If accele...

In the figure given below, if all surface are assumed to be smooth and the force F = 100N. If acceleration of block B of mass 20kg is 'a' and tension in string connecting block A of mass 20 kg is T then just after when the force F is applied-

A

T =0 and a = 5m/s2

B

T = 100 N and a = 0

C

T = 200 N and a =5m/s2

D

None

Answer

T =0 and a = 5m/s2

Explanation

Solution

As no force on A

\ T = 0 & aB = FmB\frac { \mathrm { F } } { \mathrm { m } _ { \mathrm { B } } }