Finding out the force constant of the spring
A car of 1300 kg is traveling with a speed of 13.0 m/s on a frictionless, horizontal surface till it encounters a spring. When the car compresses the spring 63.0 cm prior to coming to rest, determine the force constant of the spring?
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At local playground a child on a swing has a speed of 3.11 m/s if the swing is at its lowest point. Determine how high vertically above the lowest point is the swing if the speed has been decreased to 1/7 of the speed at the lowest point?
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