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2D Motion as Two 1D Motions

A closed cubi...

Question

A closed cubical box is completely filled with water and is accelerated horizontally towards right with constant acceleration a. The resultant normal force by the water on the top of the box.

A

Passes through the centre of the box

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B

Passes through a point to the right of the centre

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C

Passes through a point to the left of the centre

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D

Is Zero

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Solution

The correct option is B
Passes through a point to the right of the centre

In this case as we move from 1 to 2 pressure decreases and hence pressure force exerted by liquid on top of box is having point of appplication which is lying towards left of centre.

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