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13. A dock worker pushes a 55 kg crate up a 3.0 m high, 4.0 m long ramp. Ignoring friction, how much work is done

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13. A dock worker pushes a 55 kg crate up a 3.0 m high, 4.0 m long ramp. Ignoring friction, how much work is done on the crate? a) 2200 J b) 170 J c) 1600 J d) 400 J e) 2100 J 14. What is the minimum force required to increase the energy of a car by 97 J over a distance of 24 m? Assume the force is constant

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