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Using a pulley system with a mechanical advantage of 15, how large and imput force would be needed to lift a piano weighing 345 N?
N =Fi

Respuesta :

nkirotedoreen46

Answer:

5175 Newtons

Explanation:

We are given;

  • Mechanical advantage is 15
  • Output force is 345 N

We are required to calculate the work input;

  • We need to know that mechanical advantage is the ratio of output force to input force.
  • That is, mechanical advantage = Output force ÷ input force
  • Rearranging the formula;

Input force =Output force ÷ Mechanical advantage

  • Therefore;

Input force = 345 N × 15

                  = 5175 Newtons

Thus, the work input of a pulley system is 5175 N

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