Questions
In the figure shown block B moves down with a velocity 10 m/s. The velocity of A in the position shown is
a
12.5 m/s
b
25 m/s
c
6.25 m/s
d
None of these
detailed solution
Correct option is B
If B moves down at 10m/s . Therefore length of the string between A and the pulley is decreasing at a rate of 20m/sVAcos37=20m/s VA=20cos37=25m/sTalk to our academic expert!
Similar Questions
In fig., the blocks are of equal mass. The pulley
is fixed. In the position shown, A moves with a speed u and the speed of B is v. Then
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