Question

A fixed pulley is driven by a 100 kg mass falling at
a rate of 8.0 m in 4.0 s. It lifts a load of 75.0 kgf.
Calculate :
(a) the power input to the pulley taking the force of
gravity on 1 kg as 10 N.
(b) the efficiency of the pulley, and
(c) the height to which the load is raised in 4.0 s.​

Answer 1

Answer:

• A fixed pulley is driven by a 100 kg mass falling at

a rate of 8.0 m in 4.0 s. It lifts a load of 75.0 kgf.

Calculate :

• (a) the power input to the pulley taking the force of

gravity on 1 kg as 10 N.

• (b) the efficiency of the pulley, and
• (c) the height to which the load is

Explanation:

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