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Physics - SHM Question with Solution | TestHub

PhysicsSHMMiscellaneousMedium2 minQB

PhysicsMediummultiple choice

A spring has natural length of 40 cm and spring constant 500 N/m. A block of mass 1 kg is attached at one end of the spring and other end of the spring is attached to ceiling. The block is released from the position, where the spring has length 45 cm. Then choose the correct statement(s).

Options:(select one or more)

Answer:

B, C, D

Solution:

Mean extension = mg/k = 2 cm; released from 5 cm extension, the amplitude is 3 cm, not 5 cm.

$ω = k / m = 105$ rad/s; $v_{ma x} = A ω = 305$ cm/s and $a_{ma x} = A ω^{2} = 15 m/ s^{2}$ .

The spring crosses its natural length during the motion, so its minimum potential energy is zero.

Answer: B,C,D

Stream:JEESubject:PhysicsTopic:SHMSubtopic:Miscellaneous

⏱ 2mℹ️ Source: QB

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