Laws of MotionHard
Question
A hinged construction consists of three rhombus with the ratio of sides (5 : 3 : 2). Vertex A3 moves in the horizontal direction with velocity V. Velocity of A2 will be :


Options
A.2.5 V
B.2.5 V
C.(2/3)V
D.0.8V
Solution
Case−1 seen from ground is same as Case-2 seen from train.

v =
= − 20 sinθ
u =
= − 16 sin θ
⇒ u =
v = 0.8 v

v =
u =
⇒ u =
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