Question

A A load of 1000 N can be lifted by applying

the force) effort of 250 N.If the load
arm is 25 cm, calculate the effort arm.

Answer 1

Step-by-step explanation:

`\text{Since the fulcrum lies in between the load and effort, it is class I lever.}`

`\text{Mechanical advantage (M.A.) of levers is given by,}`

`\text{M.A.=effort armload arm=50cm,10cm}`

`\text{Thus, mechanical advantage , M.A. = 5.}`

`\text{Given, effort (E)=10N, Load(L)=?}`

∴
`L=E * M.A.`

`=10*5=50N`

Answer 2

`\fbox {100 cm}`

Step-by-step explanation:

Finding Mechanical Advantage :

MA = Load / Effort

MA = 1000/250

MA = 4

Finding length of effort arm :

Load arm = Effort arm / 4

Effort arm = 25 cm x 4

Effort arm = 100 cm