A block of mass 
, lying on a smooth horizontal surface, is attached to a spring (of negligible mass) of spring constant 
. The other end of the spring is fixed, as shown in the figure. The block is initally at rest in its equilibrium position. If now the block is pulled with a constant force 
, the maximum speed of the block is:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
JEE Main 2019
Maximum speed is at mean position or equilibrium At equilibrium position
From work-energy theorem,
or, 
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