A truck of mass 2500kg moving at 15m/s collides with a car of mass 1000kg moving at 5m/s in the opposite direction with what velocity would the two move together.
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Here we can use the equation
m1v1 + m2v2 = m3v3
(2500x15) + (1000x5) = ((2500+1000)x V3)
37500. + 5000. = 3500 x V3
42500. = 3500 x v3
v3 = 12.14m/s
m1v1 + m2v2 = m3v3
(2500x15) + (1000x5) = ((2500+1000)x V3)
37500. + 5000. = 3500 x V3
42500. = 3500 x v3
v3 = 12.14m/s
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