Two particles A A\,A and BBB, of mass 0.3 kg and m m\,m kg respectively, are moving in opposite directions along the same straight horizontal line so that the particles collide directly. Immediately before the collision, the speeds of A A\,A and B B\,B are 8 m s−1^{-1}−1 and 4 m s−1^{-1}−1 respectively. In the collision the direction of motion of each particle is reversed and, immediately after the collision, the speed of each particle is 2 m s−1^{-1}−1.
Find the magnitude of the impulse exerted by B B\,B on A A\,A in the collision.
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.