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PhysicsSHMMiscellaneousHard2 minPYQ_2014
PhysicsHardsingle choice

Two bodies of masses1 kgand4 kgare connected to a vertical spring, as shown in the figure. The smaller mass executes simple harmonic motion of angular frequency25 rad s-1, and amplitude1.6 cmwhile the bigger mass remains stationary on the ground. The maximum force exerted by the system on the floor is (takeg = 10 m s-2).

Question diagram: Two bodies of masses 1 kg and 4 kg are connected to a vertic

Options:

Answer:
B
Solution:


Given ω = 2 5 rad/s and A = 1.6 cm

∴   ω=km=25 k= 25 2

Maximum compression in the spring

=xo+A

=mgk+A

  Fmax=4g + k(x0 + A)

Fmax =4g+kmgk+A

            = 40 + 20 = 60 N

Stream:JEESubject:PhysicsTopic:SHMSubtopic:Miscellaneous
2mℹ️ Source: PYQ_2014

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