Question

4. Betsy wants to use her own weight to lift a 1,500-newton box. She weighs 500 newtons. Suggest input and output arm lengths that would allow Betsy to lift the box with a lever. Draw a lever and label the input and output arms with the lengths and forces.​

Answer 1

Step-by-step explanation:

Given:

F₁ = 500 N

F₂ = 1.500 N

____________

L₁ - ?

L₂ - ?

Moment rule:

M₁ = M₂

F₁*L₁ = F₂*L₂

F₂ / F₁ = 1.500 / 500 = 3

L₁ / L₂ = 3

L₁ = 3*L₂

If L₂ = 0.5 m

then L₁ = 3*0.5 = 1.5 m