Question

A. If the rock weighs 1050 N, how far does the girl move her end of the lever if the lever is

Answer 1

student is removing rocks from a garden. She exerts a force of 218 N on a lever to raise one rock a distance of 11.0 cm.

Answer:

52.98 cm

Explanation:

The ratio of forces and distance moved will be the same hence we apply cross multiplication rule

If 218 N can only raise the rock to a distance of 11 cm then we check the distance it can move when force is increased to 1050 N

218 N=11 cm

1050 N=?

By cross multiplication, the distance will be equivalent to $\frac {1050\times 11 cm}{218}=52.981651376146\ cm\approx 52.98\ cm$