Laws of MotionHard
Question
In the figure shown the velocity of lift is 2 m/s while string is winding on the motor shaft with velocity 2 m/s and block A is moving downwards with a velocity of 2 m/s, then find out the velocity of block B.
Options
A.2 m/s ↑
B.2 m/s ↓
C.4 m/s ↑
D.8 m/s ↑
Solution
V = (velcoity of B w.r.t ground)
= 2 V = 8 m/s (velcoity of B w.r.t ground)V′ = 6 m/s (velcoity of B w.r.t lift )
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