What is mechanical energy?

it is the energy found in electrons

it is the energy of motion

it is all stored energy

it is the sum of the kinetic and potential energies of an object

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

Standing side by side ,you and a friend step off a bridge at different times and fall for 1.6s to the water below.your friend goes first,and you follow after he has dropped a distance of 2.0m.when your friend hits the water,is the seperation between the two of you 2.0m or more than 2.0m? verify your answer with a calculation.

Aforklift raises a 1,020 n crate 3.50 m up to a shelf. how much work is done by the forklift on the crate? the forklift does j of work on the crate.