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A box of mass m is placed on a smooth ho...

A box of mass m is placed on a smooth horizontal platform as shown in the figure. The platiform is made to move in direction `30^(@)` above the horizontal with acceleration a so that the contact force between the box and the platform becomes 3 mg/2. Find the magnitude of the acceleration.

Text Solution

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The correct Answer is:
`gm//s^(2)`
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