24. A car of mass m moving at a speed vi collides and cou-muples with the back of a truck of mass 2m moving ini-tially in the same direction as the car at a lower speedv2. (a) What is the speed v, of the two vehicles imme-diately after the collision? (b) What is the change in AMT 100kinetic energy of the car-truck system in the collision?SW131. A 1
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24. A car of mass m moving at a speed vi collides and cou- mu ples with the back of a truck of mass 2m moving ini- tially in the same direction as the car at a lower speed v2. (a) What is the speed v, of the two vehicles imme- diately after the collision? (b) What is the change in AMT 100 kinetic energy of the car-truck system in the collision? SW1 31. A 1
a)
The expression for the final speed from the conservation of momentum,
Substitute the values,
b)
The expression for the chang...
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