Question: A body of mass 0.4 𝑘𝑔 is whirled in a vertical circle making 2 𝑟𝑒𝑣/𝑠𝑒𝑐. If the radius of the circle is 2 𝑚, then tension in the string when the body is at the top of the circle, is
(A) 41.56 N
(B) 89.86 𝑁
(C) 109.86 𝑁
(D) 115.86 N
Answer: option (D)
Solution:
