$\mathrm{ Truck\; A\; of\; mass\; 2}000kg,$ moving eastwards, collides with truck $$B of mass 1500kg.The graph shows how the momentum of each of the trucks varies with time .

 

$\mathrm{}\mathrm{}1.$ Write down the Principle of Conservation of Linear Momentum.

$\mathrm{}\mathrm{}2.$ Write down the initial momentum of truck $A.$

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$\mathrm{}\mathrm{}3.$ Determine the magnitude and direction of the velocity of truck $$B before the collision.

$\mathrm{}\mathrm{}4.$ Prove through calculation that the collision is inelastic.

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Momentum (kg.m.s)... x 10 6,0- 2.0 1,0 Truck A 0,1 02, 03 0.4 0,5 t(s)