A car is travelling along a relatively straight highway 30 km long. For the first 5...

 

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A car is travelling along a relatively straight highway 30 km long. For the first 5 minutes of the journey, the car travels at a constant velocity of 30 km/h. After this, the car accelerates to 65 km/h within a 400 m stretch, and stays at this velocity for 14 minutes. The car slows to 50 km/h very quickly (in about 6 seconds) in order to avoid running into a car in front, and slowly sped up to 80 km/h over the remainder of the length of the highway (i.e. reached 80 km/h at the end of the highway) Draw a graph showing the acceleration of the car on the highway (v vs. t graph) b. Draw a graph showing the velocity of the car on the highway (x vs t graph) a. C. What is the average velocity of the car over the highway trip? A car is travelling along a relatively straight highway 30 km long. For the first 5 minutes of the journey, the car travels at a constant velocity of 30 km/h. After this, the car accelerates to 65 km/h within a 400 m stretch, and stays at this velocity for 14 minutes. The car slows to 50 km/h very quickly (in about 6 seconds) in order to avoid running into a car in front, and slowly sped up to 80 km/h over the remainder of the length of the highway (i.e. reached 80 km/h at the end of the highway) Draw a graph showing the acceleration of the car on the highway (v vs. t graph) b. Draw a graph showing the velocity of the car on the highway (x vs t graph) a. C. What is the average velocity of the car over the highway trip?

Answer rating: 100% (QA)

Solution a v 30 kmh for Smin 12 AS x30 25 km v 30 kmh 65kmu in 0... View the full answer