A gymnast hangs from one of a rope and executes vertical circular motion . The gymnast has a mass of 4 kg and the radius of the circle is `2.5` m . If the gymnast whir is himself at a constant speed of 6 m/s , what is the tension in the rope at the lowest point ?

Options

A. 1200 N
B. 968 N
C. 782 N
D. 500 N

Answer

B

Explanation

`T =(mv^(2))/r + mg = (40 xx 36)/(2.5) +40 xx 10 = 576 + 400 approx 976`