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Q. A 60.0 kg crate is slid up an inclined ramp 2.0 m long onto a platform 1.6 m above the floor level. A 452 N force, parallel to the ramp, is needed to slide the crate up the ramp at a constant speed. How much work is done in sliding the crate up the ramp?

Q. A 10g bullet is fired into a 100g block of wood at rest on a horizontal surface. After impact, the block slides 8m before coming to rest. If the coefficient of friction is .6, find the speed of the bullet before impact.

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