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Momentum (p) rate of change of momentum (Δp/Δt) |
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Conservation of Momentum (2) [image] [image][image] |
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m1v1 + m2v2 = m1v'1 + m2v'2 If an external force is acting on the object(s) such as gravity, conservation of momentum is lost |
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=Δp = FΔt the longer the impact time of an impulse, the smaller the force can be for the same momentum change, and hence the smaller the deformation of the object on which the force acts |
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Objects stick -> one vf (completely inelastic) some KE is lost to thermal or PE, or gained from chemical/nuclear energy in explosions |
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| The motion of the center of mass of an exploding rocket (and all it's pieces) will follow it's original parabolic path, both before and after explosion. |
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