Question

A 40 kg child sits on a swing supported by two chains, each 3 m long. If the tension in each chain at lowest point is 350 N, then the child’s speed at the lowest point is

[Take g = 9.8 m/s² ]

(A) 4.7 m/s

(B) 3 m/s

(C) 7.2 m/s

(D) 9.1 m/s 

Answer 1

The correct option- (A) 4.7 m/s 

Explanation:-