Question

300N effort is applied to lift to load 900N by using a first-class lever. If the distance between the load and fulcrum is 20m, then calculated the distance fulcrum to the effort. ( I need answers ASAP)

Answer 1

Here,
Effort=300N
Load=900N
Load distance=20m
Now,
Ed=(L*Ld)/E
Ed=(900*20)/300
Ed=1800/300
Ed=6m

Hence, the distance from fulcrum to effort is 6 m

Answer 2

Answer:

300N effort is applied to lift to load 900N by using a first-class lever. If the distance between the load and fulcrum is 20m, then the distance fulcrum to the effort is $60m$

Explanation:

• Let L be the load and E be the effort.

• The distance between the load and fulcrum be the load distance$L_d$ and the distance between effort and fulcrum be the Effort distance$E_d$.

• Then according to the principle of levers,

        Load $\times$ Load distance  =Effort $\times$ Effort distance

        That is,

         $L\times L_d = E\times E_d$    ...(1)

In the question, it is given that,

$L = 900\ N$            $E = 300\ N$

$L_d = 20\ m$             $E_d = ?$

Using equation (1),

$E_d = \frac{L\times L_d}{E}$

Substitute the values into the above equation.

$E_d = \frac{900\times 20}{300} = 60 m$

Effort distance is $60m$