A goods wagon of mass 5.0 × 10³ kg is moving on a straight track at 2.0 m s⁻¹
PHYSICS · Subjective · AP · Physics 1: Algebra-based · Linear Momentum · Linear Momentum
Problem
A goods wagon of mass 5.0 × 10³ kg is moving on a straight track at 2.0 m s⁻¹. A shunting engine couples to the wagon and pulls it with a constant horizontal force of 8.0 × 10³ N for 10 s along the straight track. Neglect all frictional forces.
(i) Find the magnitude of the change in momentum of the wagon in the 10 s interval.
(ii) Calculate the speed of the wagon at the end of the interval.
(iii) What is the impulse imparted to the wagon during this interaction?