Question

Adoor is 1metre wide it can be closed by an effort of 25 Newton when effort is applied at a distance of 0.4 metre from the hinge whatever is needed if it is applied at its extreme end​

Answer 1

Answer:

S=1m in first case

F=25 N

So, torque or moment of force=F*d

25N*1m=25 NM

Thus torque remais same in 2 nd case

T=25Nm

D=0.4 m

Thus, T=F*d

25Nm=F*0.4m

25Nm/0.4=f

62.5N=F

Explanation:

Answer 2

Explanation:

Here's the answer...