Question

Multiple Choice Question. Select the correct option.

A force acts on a body of mass 3 kg such that its velocity changes from 4 ms⁻¹ to 10 ms⁻¹. The change in momentum of the body is

विकल्प

• 42 kgms⁻¹

• 2 kgms⁻¹

• 18 kgms⁻¹

• 14 kgms⁻¹

Answer 1

18 kgms⁻¹

Explanation:
Mass = m = 3 kg
Velocity v₁ = 4 ms⁻¹
Velocity = v₂ = 10 ms⁻¹
Change in momentum of body
= mv₂ – mv₁ = m (v₂ – v₁) = 3 (10 – 4)
= 3 × 6 =18 kgms⁻¹