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How much force will your need to move a 200 pound refrigerator onto a truck bed that is five feet high if you use a 10 foot inclined plane?

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hamzaahmeds

Answer:

P = 100 lb

Explanation:

For an ideal machine:

[tex]Work\ In = Work\ Out\\(P)(L)=(W)(H)[/tex]

where,

P = Effort = Input Force = ?

L = Effort Arm = Length of inclined plane = 10 ft

W = Load to be lifted = 200 lb

H = Load Arm = Height = 5 ft

Therefore,

[tex]P(10\ ft) = (200\ lb)(5\ ft)\\\\P = \frac{(200\ lb)(5\ ft)}{10\ ft}[/tex]

P = 100 lb

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