Question

a particle of mass 200g completes one rotation of a circular track of radius 2m in 20 second. calculate angular speed and centripetal acceleration​

Answer 1

Explanation:

The body will revolve in the circle if the string does not sag.

T

H

≥0

or, T

H

+mg=

r

mu

2

For minimum, T

H

=0

∴u=

rg

=4.47ms

−1