Two particles A A\,A and B B\,B have masses 4 kg and m m\,m kg respectively. They are moving towards each other in opposite directions on a smooth horizontal table when they collide directly. Immediately before the collision, the speed of A A\,A is 5 m s−1^{-1}−1 and the speed of B B\,B is 3 m s−1^{-1}−1. Immediately after the collision, the direction of motion of A A\,A is unchanged and the speed of A A\,A is 1 m s−1^{-1}−1.
Find the magnitude of the impulse exerted on A A\,A in the collision.
Immediately after the collision, the speed of B B\,B is 2 m s−1^{-1}−1. Find the value of mmm.
Practise Edexcel A Level Old Maths Momentum with exam-style questions for A Level Old Maths. 8 questions, matched to the Edexcel A Level Old Maths (9371) specification and written in Unit exams C1, C2, C3 and C4 plus two applied units (e.g. S1 and M1) style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.