A 150-lb man carries a 10-lb can of paint up a helical staircase that encircles a silo with radius 25 ft. If the silo is 90 ft high and the man makes exactly three complete revolutions, how much work (in ft-lbs) is done by the man against gravity in climbing to the top? ft-lbs A 150-lb man carries a 10-lb can of paint up a helical staircase that encircles a silo with radius 25 ft. If the silo is 90 ft highand the man makes exactly three complete revolutions, how much work (in ft-lbs) is done by the man against gravity inclimbing to the top?ft-lbs

The man makes exactly three complete revolutions, therefore the angle is 3×2π=6π The perimetric…

Answered: A 150-lb man carries a 10-lb can of…

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