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

Question
Asked May 11, 2019
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
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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

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check_circleExpert Solution
Step 1

a)

The expression for the final speed from the conservation of momentum,

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Step 2

Substitute the values,

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Step 3

b)

The expression for the chang...

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