Published by:
CGP EDU Academic Team
Published on: August 14, 2026
A block is dragged on a smooth plane with the help of a rope which moves with velocity 
as shown in the figure. The horizontal velocity of the block is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
NOT AVAILABLE
On applying pythagoras theorem in 
, we get
Now, differentiate both sides with respect to 
, we get
From the figure, we see that time rate of change of 
is horizontal velocity of the block to be found.
From Eq. (i), we have
where, 
is the velocity at which the rope is moving.
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