Here are two physics problems involving work and gravitational potential energy:
Problem 1: A 5 kg box is lifted 2 meters vertically against gravity. Calculate the work done in lifting the box and the change in gravitational potential energy.
Problem 2: A 10 kg object is pushed horizontally across a frictionless surface for a distance of 5 meters. Calculate the work done in pushing the object and the change in gravitational potential energy if the object is then lifted 3 meters vertically.
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