A 1-kg ball is 12 m above the ground, with an initial velocity = 0 m/s. Use the following formulas
[ KE = 1/2 xm x V2]
[P. E = mxgxh] . g =9.8 m/s2
[ Mechanical energy = K. E + P. E]

=force × distance a. work b. velocity c. pressure d. momentum

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?

What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery