The driver of an SUV (m= 1800 kg) moving at a velocity of 3.50 m/s isn't paying attention and rear ends a car (m = 1200 kg) that is at rest as it waits for the red light to turn green. On impact, both drivers lock their brakes. The SUV and car stick together and travel beyond the line. What is the velocity of the cars after the collision?
The driver of an SUV (m= 1800 kg) moving at a velocity of 3.50 m/s isn't paying attention and rear ends a car (m = 1200 kg) that is at rest as it waits for the red light to turn green. On impact, both drivers lock their brakes. The SUV and car stick together and travel beyond the line. What is the velocity of the cars after the collision?
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PETA4 Conserv.n of Momentum Q X
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1. The driver of an SUV (m= 1800 kg) moving at a velocity of 3.50 m/s isn't paying attention and rear
ends a car (m = 1200 kg) that is at rest as it waits for the red light to turn green. On impact, both
drivers lock their brakes. The SUV and car stick together and travel beyond the line. What is the
velocity of the cars after the collision?
2. Two carts collide head-on and then ricochet off each other in opposite directions on a frictionless
surface. The first cart has a mass of 0.350 kg and an initial velocity of 1.50 m/s. The second cart has
a mass of 0.500 kg and an initial velocity of 0.75 m/s. After the collision, the smaller cart recoils with
a velocity of 4.0 m/s. What is the final velocity of bigger cart?
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Part II. Guide Questions
Answer each question and explain in two to three sentences.
1. For each run of your elastic and inelastic collision experiment, observe the initial momentum and the
final momentum. Does your data indicate conservation of momentum? Explain. (3 pts)
2. What is the difference between elastic and perfectly inelastic collision? How is it
demonstrated using the simulation? (3 pts)
3. In real life give two examples of inelastic collisions and perfectly inelastic collision. Include
illustrations. (4pts)
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