Describe using examples how objects can be at rest and in motion simultaneously

Aman throws a football straight into the air. as it rises, it slows down. which type of energy is the football gaining?

Diamond will scratch quartz. true or false

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?