Question

A stone of mass 250 gram, attached at the end of a string
of length 1.25 m is whirled in a horizontal circle at a speed
of 5 m/s. What is the tension in the string?
(a) 2.5 N
(b) 5 N
(c) 6N
(d) 8N​

Answer 1

Answer:

Ans : B

Explanation:

T = mv*2/r

1/4 × 25/1.25

5N