Question

An object of mass 8kg is attached to massless string of length 2m and swum with a tangential velocity of 3 what is the tension on the string

Answer 1

36 N

Step-by-step explanation:

If the object of mass, m = 8 kg is swung in a horizontal circle of radius, r = 2m = length of string with tangential velocity v = 3 m/s, the tension in the string is the centripetal force which is T = mv²/r

= 8 kg × (3 m/s)²/2 m

= 4 kg × 9 m/s²

= 36 N