Circular Motion in a Horizontal Plane (1 Viewer)

[michaeljennings]

Could someone explain how to do this question to me
A particle of mass 0.25 kg is attached to one end of a light inextensible string of length 0.5m. The other end is fixed to a point A on a smooth horizontal table. The particle is set in motion in a circular path.
a) If the speed of the particle is 8 metres per second, find the tension in the string and the reaction with the table
b) If the string breaks when the tension in it exceeds 50N find the greatest angular velocity at which the particle can travel.

The answers are 32N, g/4 N and 20 radians per second

 

[Drongoski]

Wasn't there someone offering to Tutor Circular Motion in the Tutoring section ??





Normal reaction = mg = 0.25 g

For T = 50 N:

 

[michaeljennings]

thanks a lot, i havent checkde out the tutoring section im new to this forum but thanks heaps