Question

Jonathan must lift a 3000n rock using a lever. jonathan uses 300n of force to push down on the lever to move the rock. what is the ratio of the load to effort in this case?a)1:3b)3:1c)1:10eliminated)10:1

Answer 1

The load is the weight of the rock that Jonathan lifts:

`L=3000 N`
The effort instead is the force applied in input to the lever in order to lift the rock:

`E=300 N`

So, the ratio between load and effort for this exercise is

`(L)/(E)= (3000 N)/(300 N)=10`
So, the ratio is 10:1.