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What is the displacement of a racecar doing laps on a racetrack as it crosses the
finish line? Explain.
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- When a 10,000-m runner competing on a 400-m track crosses the finish line, what is the runner’s displacement? Can the displacement be zero? Explain.To settle an argument Dr Goulding and his Mrs (his wife) decide to have a 40.0 m long snowshoe race, with the prize being a very nice locally made face mask At the start line they shake hands and when their cat helper Charlie fires the start gun they begin running on thier snowshoes. Dr Goulding reaches his maximum speed of speed of 2.68 m/s in a time of 10.0 s while The Mrs accelerates to her maximum speed of 3.00 m/s at a rate of a,-0.20 m/s2 Doth runners are now moving at constant speed? For this question do nat use the answer you got from Question 21 (Part F) but let's assume that they are 6 m apart and The Mrs is behind. How long does it take The Mrs to catch up to Dr Goulding? Your Answer: Answer unitsIs it possible for a car to circle a racetrack with constant velocity?Can it do so with constant speed? Explain.
- To settle an argument Dr Goulding and The Mrs (his wife) decide to have a 40.0 m long snowshoe race, with the prize being a very nice locally made face mask. At the start line they shake hands and when their cat helper Charlie fires the start gun they begin running on thier snowshoes. Dr Goulding reaches his maximum speed of speed of 2.68 m/s in a time of 10.0 s while The Mrs accelerates to her maximum speed of 3.00 m/s at a rate of a,-0.20 m/s2 How long does it take The Mrs to reach her maximum speed of 3.00 m/s? Your Answer: Answer unitsYou are driving your car uphill along a straight road. Of Suddenly, you see a car go through a red light and enter the intersection, just ahead of you. you. You immediately apply your brakes and skid straight to a stop, leaving a 100 ft long mark from the landslide. A policeman observes the whole incident, give the driver of the car a ticket for running a red light. He also gives a ticket to you for exceeding the 30 mph speed limit. When you get home, you read your physics book and you may notice that the coefficient of kinetic friction between the tires and the road was 0.60, and the coefficient of static friction was 0.80. You estimate that the hill makes an angle of about 10° with the horizontal. Check the manual owner and find that your car weighs 2,050 lbs. Are you going to claim the traffic ticket? in the court? Support your argument. Please type answer not write by hend©20. A railroad freight yard switch engine on a straight track trav- els 1000. m to the end of the track, then back 600. m, then forward 300. m. a. What is the switch engine's final displacement from its starting position? b. How far did it travel?
- 3. A dog initially at rest, starts running inside a circular track with a 40n m circumference. The dog's acceleration tangent to its path is defined by the function at = 0.1t + 0.4t. What is the total distance ran by the dog after t= 10 s?1. Arthur and Betty start walking toward each other when they are 100. m apart. Arthur has a speed of 3.0 m/s and Betty has a speed of 2.0 m/s. Their dog, Spot, starts by Arthur's side at the same time and runs back and forth between them at 5.0 m/s. By the time Arthur and Betty meet, what distance has Spot run?1.A car drives east at 40 m/s for 500 seconds, stops, turns around, then drives west at 50 m/s for 400 seconds and stops. What is the displacement of the car? What is the distance the car traveled? 2.An object move to the left from X1: 9 to X2: -3 find the distance and displacement. 3. What is the distance and displacement of the ball as it bounce back from the wall with 2m initial distance and 4m as final distance. 4.What is the distance and displacement of the bullet, shot in a can with a starting point of 5m to 10m end. 5. An object travels 80m east and then 160m south. What is the distance and displacement?
- 1. a 100kg astronaut (including the space suit) becomes untethered during a space walk and drifts to a distance of 10m from the mother ship. To get back to the ship, he throws his 2.5kg tool kit away with an acceleration of 8.0ms-1 that acts over 0.50s. a) How does throwing the tool kit away help the astronaut in the situation? b) How large is the fact that acts on the tool kit and the astronaut? c) With that speed will the astronaut drift to the mother ship? d) How long will it take for the astronaut to reach the ship?Songlu loves Vin Diesel and has watched every Fast and Furious movie, even Tokyo Drift! To get Vin Diesel's attention on TicTok she decides to redo one of his movie stunts. Songlu rents a Porsche 911 convertible, pays the extra $10 per day for insurance, and then drives to Big Bear. When she gets there, Songlu puts on her parachute and drives at a speed of 215 mph (96.1 m/s) off of a 450 m tall cliff, jumping out mid air so she can use her parachute on the way down. How far does Rubbab's rented Porsche 911 land from the base of the cliff? O 832 m O 614 m O 1,230 m O 921 m4. A cat is resting on a lawn 25.7 m from a fence with a hole it in. A rabbit, hopping at a constant 8.7 m/s, bounces past the cat moving towards the fence. The cat gives chase, accelerating at 1.20 m/s?. a) How long would it take the rabbit to reach the fence, assuming that it's already moving at top speed? b) How long would it take the cat to reach the fence? c) Is the rabbit able to escape from the cat through the fence? Explain.