Chapter 8 - Momentum

Question 1

Define Momentum.

Answer 1

Momentum = Mass x Velocity = m x v

Question 2

Define Impulse

Answer 2

Impulse = Force x Time OR Change in Momentum

I = F x t

I = mv-mu

I = ∫ 0 to t F dt

I = ∫ 0 to t m(dv/dt)dt

Question 3

State Newton’s Experimental Law.

Answer 3

E = 0 (perfectly inelastic/no rebound)
E = 1 (perfectly elastic)

Question 4

State the principle of conservation of linear momentum.

Answer 4