Question

In a pulley system, how can the mechanical advantage be determined in a way that is different from any other machine?

a) By measuring the length of the rope
b) By counting the number of pulleys
c) By calculating the force applied and the load lifted
d) Mechanical advantage is the same for all machines

Answer 1

The mechanical advantage in a pulley system can be determined by counting the number of ropes supporting the load.

Step-by-step explanation:

In a pulley system, the mechanical advantage can be determined by counting the number of ropes supporting the load. The more ropes there are, the higher the mechanical advantage. This is different from other machines where the mechanical advantage may be calculated using different methods such as measuring distances or forces.