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In the figure shown all the surface are ...


In the figure shown all the surface are smooth. All the blocks A,B and C are movable x-axis is horizontal and y-axis vertical as shown. Just after the system is relased from the position as shown.

A

Acceleration of `'A'` relative to ground is in negative `y-` direction

B

Acceleration of `'A'` relative to `B` is in positive `x-` direction

C

The horizontal acceleration of `'B'` relative to ground is in negative `x-` direction.

D

The acceleration of `'B'` relative to ground directed along the inclined surface of `'C'` is greater than `gsin theta`.

Text Solution

Verified by Experts

The correct Answer is:
A, B, C, D
There is no horizontal force on block `A`, therefore it does not move in `x-` directing , whereas there is net downward force `(mg-N)` is acting on it, making its acceleration along negative `y-` direction. Block `B` moves downward as well as in negative `x-` direction. Downward acceleration of `A` and `B` will be equal due to constrain, thus `w.r.t. B, A` moves in positive `x-` direction.

Due to the component of normal exerted by `C` on `B`, it moves inn negative `x-` direction.
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