If you travel in a straight line at 50 km/h for 1 h and at 100 km/h for another hour, is your average velocity 75 km/h? If not, is it more or less? Explain
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If you travel in a straight line at 50 km/h for 1 h and at 100 km/h for another hour, is your average velocity 75 km/h? If not, is it more or less? Explain.
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- Could I have help with this average speed and velocity problem. I already know the answers"average velocity = 2.7 m/s due east, average speed = 8.0 m/s" but I need a detailed explanantion on how and why because I am not understanding and getting the same answersOne aeroplane travels due north at 300km/h while another travels due south at 300km/h. Are their speeds the same? Are their velocities the same? Explain.One airplane travels due north at 300 km/h while another travels due south at 300 km/h. Are their speeds the same? Are their velocities the same? Explain.
- You run due east at a constant speed of 3.00 m/s for a distance of 120.0 m and then continue running east at a constant speed of 5.00 m/s for another 120.0 m. For the total 240.0 m run, is your average velocity 4.00 m/s, greater than 4.00 m/s, or less than 4.00 m/s? Explain.The speedometer of a car reads 100 km/h in 5 seconds. Does the car have a constant velocity? Explain. The speedometer of a car moving east reads 60 km/h. It passes another car that travels west at 60 km/h. Do both cars have the same speed? Do they have the same velocity?You have already traveled 30 miles east and then 30 miles north. To get back to the start, you travel 30 miles west in 1 hour and then 30 miles south in a half hour. What are your average speed and average velocity for the whole rally? Explain your answer.
- 8. At time t=0, a ball is thrown vertically upward from the ground level, reaching its maximum height and returning back to the ground level. Which velocity versus time graph describes its motion? Take the upward direction as the positive direction. (a) WITH (b) (b) 220 9. An airplane flying horizontally at a height h=80 m above the ground with a speed of v-70 m/s drops a package to hit a mark on the ground. At what distance a in m ahead of the mark should the pilot release the package? (a) 200 (c) 240 (d) (d) 260 (e) 280 ..... hYou take your dog on a walk to a nearby park. On the way, yourdog takes many short side trips to chase squirrels, examine fire hydrants, and so on. When you arrive at the park, do you and yourdog have the same displacement from home? Have you and yourdog traveled the same distance? ExplainOne car travels due east at 40km/h, and a second car travels north at 40km/hr. Are their velocities equal? Explain.
- A train makes a journey in which at a point on its trajectory a speed of 80.0 km / h is measured towards the east, while half an hour later the speed is 65.0 km /h towards the east. Can you calculate the average acceleration in this half hour of travel? a) No, because we do not know the starting position or the final position of that half hour of travel. b) No, because we do not know how the direction of the train changed in the other moments of that half hour of travel. c) Yes, and it has a magnitude of 30.0 km/h?? westward. d) Yes, and it has a magnitude of 30.0 km / h²2? to the east.I need help on this problem: You go south of your friend's house 150 miles away at 50.0 MPH. Your friend is not there so you return home, without spending any time there, at 30 MPH. What is your average speed. What is you average velocity?A racing car traveling with constant acceleration increases its speed from 10 m/s to 30 m/s over a distance of 60 m? How long does this take? (A) 2.0 s (B) 5.0 s C) 3.0 s D) 6.0 s A car travels 40 kilometers at an average speed of 80 km/h and then travels 40 kilometers at an average speed of 40 km/h. The average speed of the car for this 80 km trip is: A 45 km/h (B 40 km/h C 53 km/h (D 60 km/h