An object is released into the air to free fall for 12 seconds before hitting the ground. If friction and air resistance are negligible, compare the kinetic, potential,

1. a net force of 100 newton’s is applied to a wagon for 5 seconds. this causes the wagon to undergo a change in momentum of

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?

Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?