Question

If a ball of mass 0.02 kg bowled by a bowler straight to a batsman is hit back with the same speed with an impulse of 2 Ns, then the speed of the ball bowled is

• A. \(20 \, \text{ms}^{-1}\)
• B. \(80 \, \text{ms}^{-1}\)
• C. \(50 \, \text{ms}^{-1}\)
• D. \(60 \, \text{ms}^{-1}\)
• E. \(40 \, \text{ms}^{-1}\)

Hint:

Impulse \(J = \Delta p = m(v_f - v_i)\). When direction reverses, \(v_f = -v_i\).

Answer 1

The Correct Option is C