Question

correct and first answer will be marked brainliest​

Answer 1

Acc. To me,

In body there is 4 forces

1. Normal

2.mg

3.Friction

4.Force to move

Mg is divide into 2 components

3rd force is equal to 4 th force

At site of 4 th force is equal to mgsintheta

That is equal to 3rd force

U(meu)N(normal)

Normal is equal to cos component of mg --mgcostheta

Friction f=UN

U is given coeficient of friction

N =mgcostheta

F= Umgcostheta

I hope it help

If you found mistake please tell me