Five bales of cardboard must be moved 45 feet. If each bale weighs 66 pounds, find the amount of work required to move the cardboard.
2007-06-10 08:28:34 · 5 answers · asked by vanessandavid 1 in Science & Mathematics ➔ Mathematics
Assume you are carrying the bales the whole 45 feet.
Then work = 45*66*5 = 14,850 ft-pounds.
2007-06-10 08:34:21 · answer #1 · answered by ironduke8159 7 · 1⤊ 1⤋
workd = force * distance
there are 5 bales, the total weight is 66 x 5 = 330 lb
force and distance have to be in the same direction. In this case, if you carry the 5 bales horizonally, no work is done. To do work, you need to left them up vertically
work = 330lb * 45ft
work = 1485 lb-ft
2007-06-10 15:41:45 · answer #2 · answered by 7 · 0⤊ 1⤋
If the boxes are being lifted 45 ft,
W = 5*66*45
If they are being moved horizontally,
W = μ*5*66*45
where μ is the coefficient of friction.
If an inclined plane of angle θ is involved,
W = 5*66*45(sinθ + μ*cosθ)
2007-06-10 15:51:54 · answer #3 · answered by Helmut 7 · 0⤊ 0⤋
i think the equation you're looking for is work done = force x distance.
where weight is a force.
2007-06-10 15:32:26 · answer #4 · answered by | König | 2 · 0⤊ 0⤋
Buy a forklift!
2007-06-10 15:42:46 · answer #5 · answered by Anonymous · 0⤊ 1⤋