A solid sphere of mass 10 kg is placed over two smooth inclined planes as shown in figure. The normal reactions at 2 is (g = 10 m/*^2 )

Question

A solid sphere of mass 10 kg is placed over two smooth inclined planes as shown in figure. The normal reactions at 2 is (g = 10 m/s2 )

(A) 50

(B) 30

(C) 20

(D) 70

Answer 1

Correct option: (A) 50

Explanation:

N1 sin 30° = N2 sin 60°

N1 cos 30° + N2 cos 60° = mg

Solving above equation