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What is the force needed to be applied upwards along the plane to make the box either remain stationary or just move up with uniform speed ? What is the force needed to be applied upwards along the plane to make the box either remain stationary or just move up with uniform speed ?

Answer»


Answer :Force NEEDED MG `(sin ALPHA + MU COS alpha)`
Force needed = mg `(sin alpha + mu cos alpha)ma.`


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