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A 2-kg block is sliding on a plane inclined at 49 degrees. The friction coefficient between...

A 2-kg block is sliding on a plane inclined at 49 degrees. The friction coefficient between the block and the surface is 0.4.

(a) The acceleration of the block is m/s2

(b) The minimum force to be applied to the block parallel to the incline to prevent the block from sliding is N.

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