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A Honda Fit (mass = 1000 kg) and a Volvo XC40 Recharge (mass = 2000 kg) are both going 15 m/s when they see the light ahead turn red, so the drivers must bring the vehicles to a stop. They both do so by applying a steady braking force to slow down smoothly. (a) If they each come to a stop in the same amount of time, is the braking force the same for both or is one greater than the other? Explain how you know in terms of momentum transfer. (b) Let's say the driver of the Fit takes 4.0s to slow to a stop. What distance will they have traveled during those four seconds? (c) Assuming that the driver of the XC40 uses exactly the same average braking force as the driver of the Fit, how long will it take them to slow to a stop? And what distance will they have traveled during that time?

A Honda Fit (mass = 1000 kg) and a Volvo XC40 Recharge (mass = 2000 kg) are both going 15 m/s when they see the light ahead turn red, so the drivers must bring the vehicles to a stop. They both do so by applying a steady braking force to slow down smoothly. (a) If they each come to a stop in the same amount of time, is the braking force the same for both or is one greater than the other? Explain how you know in terms of momentum transfer. (b) Let's say the driver of the Fit takes 4.0s to slow to a stop. What distance will they have traveled during those four seconds? (c) Assuming that the driver of the XC40 uses exactly the same average braking force as the driver of the Fit, how long will it take them to slow to a stop? And what distance will they have traveled during that time?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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### Problem 2.2 **Scenario:** A Honda Fit (mass = 1000 kg) and a Volvo XC40 Recharge (mass = 2000 kg) are both traveling at a speed of 15 m/s when they see a traffic light ahead turning red. The drivers need to apply a steady braking force to bring the vehicles to a stop smoothly. **Questions:** (a) If they both come to a stop in the same amount of time, is the braking force the same for both, or is one greater than the other? Explain how you know in terms of momentum transfer. (b) Assume the driver of the Fit takes 4.0 seconds to come to a stop. What distance will they have traveled during those four seconds? (c) Assuming the driver of the XC40 uses exactly the same average braking force as the driver of the Fit, how long will it take them to slow to a stop? What distance will they have traveled during that time? --- This problem involves calculating and comparing braking forces, time taken to stop, and the distances traveled by two vehicles with different masses using concepts of momentum and kinematics.
Transcribed Image Text:### Problem 2.2 **Scenario:** A Honda Fit (mass = 1000 kg) and a Volvo XC40 Recharge (mass = 2000 kg) are both traveling at a speed of 15 m/s when they see a traffic light ahead turning red. The drivers need to apply a steady braking force to bring the vehicles to a stop smoothly. **Questions:** (a) If they both come to a stop in the same amount of time, is the braking force the same for both, or is one greater than the other? Explain how you know in terms of momentum transfer. (b) Assume the driver of the Fit takes 4.0 seconds to come to a stop. What distance will they have traveled during those four seconds? (c) Assuming the driver of the XC40 uses exactly the same average braking force as the driver of the Fit, how long will it take them to slow to a stop? What distance will they have traveled during that time? --- This problem involves calculating and comparing braking forces, time taken to stop, and the distances traveled by two vehicles with different masses using concepts of momentum and kinematics.
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