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QAIPMT-2009-Ph-2186: NEET 2009 Physics - Class 11 AIPMT-2009-Ph-2186 Solution: A block of mass M is attached to the lower end of a vertical…
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 spring initially unstretched. The maximum extension produced in the length of the spring will be
Multiple Choice Options
- A 2Mg/k
- B 4Mg/k
- C Mg/2k
- D Mg/k
Step-by-Step Verified Solution
When the mass attached to a spring fixed
at the other end is allowed to fall suddenly, it
extends the spring by x. Potential energy lost by
the mass is gained by the spring.
M g x = 1 2 k x 2 _ x = 2 M g k