Question

Send solution and explanation. 50 points​

Answer 1

ANSWER  :

For balancing the forces:  

Fsinθ=μ(mg−Fcosθ);F=mg

⇒sinθ/(1−cosθ)=μ⇒cot(θ/2)=μ

To move the body, cot(θ/2)>μ

Answer 2

Answer:

what did the first one said is he mad