A force of 10 N acts on a body of mass 2 kg for 2 s. What will be the change in momentum of the body?
Correct: B
Change in momentum (Δp) is given by Δp = F × Δt, where F is the force applied and Δt is the time for which the force is applied. Given, F = 10 N, Δt = 2 s. Substituting these values gives Δp = 10 × 2 = 20 kg m/s.