Question

A 10 Newton effort force is required to lift a 10 kg box just off the ground. What is the effort required to lift the box off the ground using a 3m long lever? [The fulcrum is placed 0.5m from the box.]

Answer 1

2.0 N is the answer, I hope this helps :D

Answer 2

Answer:

effort required to lift the box off the ground using a 3m long lever=2N

Step-by-step explanation:

In this question we have given

force required,F=10N

mass of box.m=10kg

length of lever, l=3m

distance between fulcrum and box,d=.5m

effort required to lift the box off the ground using a 3m long lever=?

Here,

Effort required to lift the box off the ground using a 3m long lever
`* (3m-0.5m) =F * 0.5m`

Effort required to lift the box off the ground using a 3m long lever
`* (3m-0.5m) =10N * 0.5m`

Effort=
`(10* 0.5)/(3-0.5)`

Effort=2N