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Consider an object of mass m is tied to a string of radius r and rotated with velocity of v. The string would follow a circular path

which is against the Newton’s law of motion that tells the natural tendency of any object is to follow a straight path. The radial

force developed is forcing the object to take the circular path. Centripetal acceleration of the object is

a

According to Newton’s second law

Force = mass x acceleration

As the centripetal force is directed along the same direction as the centripetal acceleration therefore,

Force = mass x v

Or, Force = m x v

F

F

force?

F

Mass of the ball = 5 kg, radius of the circle = 0.4 m and velocity of the rotation = 4 m/s.

Placing the values in equation 1 we get

F

F

F

velocity of 4 m/s?

force is given as

F

Mass of the stone = 0.01 kg, radius of the circle = 0.1 m and velocity of the stone = 4 m/s.

Placing the values in equation 1we get

F

F

F