Physics-
General
Easy
Question
A collar ‘B’ of mass 2 kg is constrained to move along a horizontal smooth and fixed circular track of radius 5 m. The spring lying in the plane of the circular track and having spring constant 200 N/m is undeformed when the collar is at ‘A’. If the collar starts from rest at ‘B’, the normal reaction exerted by the track on the collar when it passes through ‘A’ is :
- 360 N
- 720 N
- 1440 N
- 2880 N
The correct answer is: 1440 N
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