Asmall sphere of mass 2 kg is attached to the end of a cord of length 2 m and rotated in a vertical circle about a fixed point o. determine the tension in the cord at the uppermost point of the trajectory if the speed at this point is 8 m/s. use g=9.8 m/s2. report your answer as a positive number in newtons.

tension in the string at the top position of the ball will be given as

T = 44.4 N

Explanation:

At the top position of the trajectory we have force equation given as

here we have

so we have

So tension in the string at the top position of the ball will be given as

T = 44.4 N

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