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A cyclist goes around a level circular track at a constant speed. Is the acceleration 0? Explain
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- A particle travels in a circle of radius 10 m at a constant speed of 20 m/s. What is the magnitude of the acceleration?A hiker gets lost in a forest. He walks half-way around a circle with a radius of 2.1 km in 2.0 hours. a) What distance did he walk? b) What was his average speed? c) What was his displacement? d) What was his average velocity?Is it possible for a car to circle a racetrack with constant velocity?Can it do so with constant speed? Explain.
- Does the magnitude of your acceleration have to be greater than 9.8m/s² to leave the ground? explain.10) A car travels around an oval racetrack at constant speed. Is the car accelerating? If so at what point(s) in the path is it accelerating? Are there any point(s) where the acceleration is larger or smaller? B. AA car moves around a path which is circular. Its speed is constant. Which of the following is TRUE? Select one: a. The car’s acceleration is zero. b. The car’s acceleration is constant. c. The car’s velocity is constant. d. The car’s velocity is directed toward the center.
- 2. A carnival Ferris wheel has a 15-m radius and completes five turns about its horizontal axis every minute. What is the acceleration ofa passenger at his lowest point during the ride?Entrance and exit ramps for freeways are often circular stretches of road. As you go around one at a constant speed, you will experience a constant acceleration. Suppose you drive through an entrance ramp at a modest speed and your acceleration is 3.0 m/s2. What will be the acceleration if you double your speed?A particle travels in a circle of radius 14 m at a constant speed of 13 m/s. What is the magnitude of the acceleration (in m/s2)? answer in m/s2
- Lately, Jason has been taking drivers' ed so that he can get his license. However, he's also been taking physics, and so he wonders what his acceleration is, when he drives on a circular path in an empty parking lot near Peachtree Mall with diameter 78.0 m, if he is driving at a constant speed of 23.0 m/s. What is his acceleration? O 66.1 m/s² 13.6 m/s2 O 0.590 m/s² O 1.70 m/s² O 0 m/s²1. An object is moving in a circular path at constant speed. If the speed is doubled then: a) The acceleration increases by four times. b) The acceleration is doubled. c) The acceleration is halved. d) None of the above. 2. An object is moving in a circular path at constant speed. If the radius of the circular path is doubled and the speed stays the same, then: a) The acceleration decreases by four times. b) The acceleration stays the same. c) The acceleration is halved. d) None of the above. 3. A 10 kg object is moving in uniform circular motion with a radius of 20 m. It takes the object 8 s to make one complete revolution. A. Find the speed of the object. B. Find the net force acting on the object.2. A carnival Ferris wheel has a 15-m radius and completes five turns about its horizontal axis every minute. What is the acceleration of a passenger at his lowest point during ride?