H Exp – Mechanics 16 – Impulse

Aim – To compare force – time graphs for different collisions

Instructions

▪ Push the trolley gently so that it collides with the bumper
▪ Note the area under the force – time graph
▪ Read off the velocity before and after the collision from the velocity – time graph
▪ Calculate the change of momentum during the collision (remember momentum is a vector quantity)
▪ Compare this with the impulse (area under graph)
▪ Repeat the experiment with a harder push
▪ Repeat the experiment replacing the spring with clay and then with repelling magnets

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