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Kinetic energy of the car-truck system

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Reference no: EM131694539

A car of mass m moving at a speed v1 collides and couples with the back of a truck of mass 3m moving initially in the same direction as the car at a lower speed v2. (Use any variable or symbol stated above as necessary.)

(a) What is the speed vf of the two vehicles immediately after the collision?

vf =   

(b) What is the change in kinetic energy of the car-truck system in the collision?

ΔK =

Reference no: EM131694539

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