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A horizontal plank has a rectangular block placed on it. The p
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A horizontal plank has a rectangular block placed on it. The plank starts oscillating vertically and simple harmonically with an amplitude of . The block just loses contact with the plank when the later is momentarily at rest. Then

A
the period of oscillation is

B
the block weighs double its weight when the plank is at one of the positions of momentary at rest

C
the block weighs times its weight on the plank half way down

D
the block weighs its true weight on the plank, when the latter moves fastest

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Updated on: Apr 24, 2023

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Master Resource Book in JEE Main Physics (Arihant)

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A horizontal plank has a rectangular block placed on it. The plank starts oscillating vertically and simple harmonically with an amplitude of . The block just loses contact with the plank when the later is momentarily at rest. Then
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At one of the extreme position, weight of block restoring force. At the other extreme position, weight of block and restoring force both act downward direction. So the force on block at is doubled than its weight.
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Question Text
A horizontal plank has a rectangular block placed on it. The plank starts oscillating vertically and simple harmonically with an amplitude of . The block just loses contact with the plank when the later is momentarily at rest. Then
Updated OnApr 24, 2023
TopicOscillations
SubjectPhysics
ClassClass 11
Answer TypeText solution:1 Video solution: 3
Upvotes470
Avg. Video Duration6 min