Asked by Mike
A person lifts a 5.2 kg cement block a vertical distance 1.2 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.
Answers
Answered by
drwls
M * g * 1.2 meters (by the person)
No work is done during the horizontal motion.
Work done by gravity is the same, with a minus sign.
No work is done during the horizontal motion.
Work done by gravity is the same, with a minus sign.
Answered by
Andy Hutton
Equals 3.14 over 8 over the power of 1/2.
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