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Question
A child on a swing has a speed of 2.2 m/s at the low point of the arc. How high (in m) will the swing be at the high point?
Question
A student drops a water balloon out of a dorm window 28 m above the ground. What is its speed when it hits the ground?
Question
A worker at the top of a 504-m-tall television transmitting tower accidentally drops a heavy tool. If air resistance is negligible, how fast (in m/s) is the tool going just before it hits the ground?
Question
A motorist runs out of gas on a level road 210 m from a gas station. The driver pushes the 1,100 kg car to the gas station. If a 160 N force is required to keep the car moving, how much work (in J) does the driver do?
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