Question

For a pulley system, what is the relationship between the mechanical advantage and the distance the rope must be pulled?

(1 point)
Responses

A higher mechanical advantage requires pulling the rope a greater distance.
A higher mechanical advantage requires pulling the rope a greater distance.

Mechanical advantage is always equal to the distance the rope is pulled.
Mechanical advantage is always equal to the distance the rope is pulled.

A lower mechanical advantage requires pulling the rope a greater distance.
A lower mechanical advantage requires pulling the rope a greater distance.

Mechanical advantage has no effect on the distance the rope is pulled.
Mechanical advantage has no effect on the distance the rope is pulled.

Answer 1

A higher mechanical advantage requires pulling the rope a greater distance.

Reason: increasing MA reduces the input force by the same factor, so to conserve work you must pull the rope proportionally farther (e.g., MA = n → pull n times the load's distance).