Question

21.
A uniform rope of length L and mass M is placed on a smooth fixed wedge
as shown. Both ends of rope are at same horizontal level. The rope is
initially released from rest, then the magnitude of initial acceleration
of rope is
(A) Zero
(B) M( cosa-cos)g
(C) M(tana-tanpg
(D) None of these​

Answer 1

Answer:

a=0. {1}

Explanation:

if it is at the horizontal plane from both the ends then Fnet=0 ; so a=0