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Manipal Entrance Test 2018 Physics Paper
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© examsnet.com
Question : 20
Total: 50
The bob
A
of a simple pendulum is released when the string makes an angle of
45
°
with the vertical. It hits an other bob
B
of the same material and same mass kept at rest on the table. If the collision is elastic
both A and B rise to the same height
both A and B come to rest at B
both A and 6 move with the same velocity of A
A comes to rest and 6 moves with the velocity of A
Validate
Solution:
Since, collision is elastic hence, velocities of bobs A and B get interchanged. Thus, A will come to rest and Bwill move with the velocity of A.
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