Question

29. Two small balls of equal masses are joined by a light
rigid rod. If they are released from rest in the position
shown and slide on the smooth track in the vertical
plane. The speed of balls when A reaches B's position
and B is at B'is
А
r=0.5 m
B
BV
a. 4 m/s
b. 4.21 m/s
C. 2.21 m/s
d. None of the above​

Answer 1

Explanation:

superb Question. I think the strategy in solving this is to Involve Resultant Force Analysis. But since Picture is Missing , its Unclear