A block of mass M is attached to the lower end of a vertical spring. The spring is hung from a ceiling and has force constant value k. The mass is released from rest with the springinitially unstretched. The maximum extension produced in the length of the spring will be
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
: When the mass attached to a spring fixed at the other end is allowed to fall suddenly, it extends the spring by 
. Potential energy lost by the mass is gained by the spring.
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