Question

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

Answer 1

Explanation:

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

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Answer 2

Answer:

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