Question

To lift a bookshelf with a dolly, you apply 80 N of force to the dolly. If the mechanical advantage of the

dolly is 7, what is the force that the dolly applies to the bookshelf?

Answer 1

The force that the dolly applies to the bookshelf can be found by multiplying the force exerted on the dolly (80 N) by the mechanical advantage of the dolly (7), resulting in a total force of 560 N applied to the bookshelf.

Step-by-step explanation:

To calculate the force that the dolly applies to the bookshelf, we use the concept of mechanical advantage (MA), which is the factor by which a machine multiplies the force put into it. The mechanical advantage of the dolly is given as 7, so to find the force applied to the bookshelf, we multiply the force exerted on the dolly (80 N) by the mechanical advantage (7).

The force that the dolly applies to the bookshelf is:
Force applied by the dolly = Force applied on the dolly × Mechanical advantage
Force applied by the dolly = 80 N × 7
Force applied by the dolly = 560 N