Question

a stone is tied to one end of a string and whirled in a horizontal circle of radius 1 m at 20 revolutions per minute. calculate the angular velocity and linear speed of the stone also find the centripetal
acceleration​

Answer 1

Answer:

Given length of the string l= 1 m also angular velocity ω=4422 revolution/second.

We know linear velocity v=ω×r

Thus velocity v=4422×1=0.5 m/s

And we know centripetal or radial acceleration ac=rv2 

Thus ac=0.25m/s2