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Physics Resources

A child with a weight of 190 N swings on a playground swing attached to 2.00 m long chains. What is the gravitational potential energy (in J) of the child-earth system relative to the child's lowest...

In a downhill ski race, surprisingly, little advantage is gained by getting a running start. (This is because the initial kinetic energy is small compared with the gain in gravitational potential...

How much work does a supermarket checkout attendant do on a can of soup he pushes 0.650 m horizontally with a force of 4.90 N? Express your answer in joules and kilocalories.

The figure shows Andy, Bella, and Charlie (from left to right) playing on a roundabout. They move the roundabout so that it starts from rest and reaches 4 revolutions in 20.0 s. Assume...