work done on gravity= mass*g*heightlifted.
work done by gravity= -mgh
A person lifts a 3.8 kg cement block a vertical distance 0.9 m and then carries the block horizontally a distance 7.3 m. Determine the work done by the person and by the force of gravity in this process.
? J (by person)
? J (by force of gravity)
2 answers
i don't understand
2 answers