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Q. A 60.0 kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are 0.760 and 0.410, correspondingly. What horizontal pushing force is required to (i) just start the crate moving and (ii) slide the crate across the dock at a constant speed?

Q. An archer shoots a 0.10 kg arrow with a speed of 60 m/s at a 0.4- kg apple resting on a post 1.70 m high. If the arrow sticks in the apple, how far from the post will the arrow and apple fall?

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