Asked by brittany
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)
? J (by person)
? J (by force of gravity)
Answers
Answered by
bobpursley
work done on gravity= mass*g*heightlifted.
work done by gravity= -mgh
work done by gravity= -mgh
Answered by
brittany
i don't understand
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