Mech 2
Mech 3
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AS/A2 Mech 2 Mech 3 |
| M1 Topic 4: Dynamics | |
| Momentum |   |
| The
momentum of a particle is a vector quantity given by the product of its mass
and its velocity, ie., momentum = mv, where m kg is the mass of a
particle abd v m/s is its velocity. The principle of conservation of momentum states that when two particles collide: the total momentum before impact = the total momentum after impact |
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| In the diagram, u1 > u2 so that the
particles collide. Conservation of momentum
gives: m1u1 + m2u2 = m1v1 + m2v2 |
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