An object is constrained by a cord to move in a circular path of radius 1.3-m on a frictionless, horizontal surface. The cord will break if the tension exceeds 15.7-N. The maximum kinetic energy that this object can have is J. Round your answer to the nearest whole number.

Kinetic energy will be equal to  J

Explanation:

We have given radius of the path r = 1.3 m

Tension in the string T = 15.7 N

At breaking point , here T is tension, m is mass and v is velocity and r is radius

So

We have to find the kinetic energy

Kinetic energy is given by

So

So kinetic energy will be equal to  J

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.