Question

A body weighing 0.5 kg tied to a string is projected with a velocity of 10 m/s. The

body starts whirling in a vertical circle. If the radius of the circle is 0.8 m, find the

tension in the string when the body is at the top of the circle.​

Answer 1

Answer:

37.5N

Explanation:

Tension at bottom point = mv^2/r + mg

= 67.5

Tension at top = tension at bottom -6mg

= 67.5 - 30 = 37.5N