A cyclist goes around a level, circular track at constant speed. Do you agree or disagree with the following statement? “Since the cyclist’s speed is constant, her acceleration is zero.” Explain.
Answer to Problem 1CQ
Explanation of Solution
Consider any object moving in a circle at a constant speed. The motion obtained by that object is called as uniform circular motion. To obtain such a motion, acceleration must be given in the direction of the center of the circle.
This kind of acceleration is called as centripetal acceleration, which acts towards the center.
Conclusion:
Thus, there is an existence of acceleration in the given case.
Want to see more full solutions like this?
Chapter 6 Solutions
COLLEGE PHYSICS - LCPO
Additional Science Textbook Solutions
University Physics Volume 1
An Introduction to Thermal Physics
College Physics
Introduction to Electrodynamics
University Physics (14th Edition)
Lecture- Tutorials for Introductory Astronomy
- 1. (a) Is it possible to go around any type of curve with zero acceleration? Explain. (b) Is it possible to go around any type of curve with a constant acceleration? Explain. (c) If an object goes around a circular curve with a constant speed, will the acceleration be a constant or changing vector quantity? Explain.arrow_forwardA car is traveling south at 30 km/h. it rounds a curve, and 6 s later it is traveling west at 30 km/h. the magnitude of the average acceleration of the car is: (the answer is 7.1 km/h s ) I have the answer, but PLEASE show how to get it in step by step detail/explain how ( it's an exam review question but I don't know why that's the answer)arrow_forwardYou walk in the direction of the unit vector (1,0, 0) a distance of 24 m at a constant speed of 3.0 m/s, then turn and walk in the direction of the unit vector (1, 0, 1)/ /2a distance of 15 m at a constant speed of 0.5 m/s. What was your average velocity? average velocity = ( i ) m/s iarrow_forward
- A cyclist goes round a circular track, of radius 10 m, at a constant speed of 8.0 m s-1.What is the acceleration of the cyclist and what is its direction?arrow_forwardA girl on a bicycle takes 15.8 s to ride half way around a circular track of radius 20.0 m (see the figure below). R At t = 0 HINT (a) What is the girl's average speed (in m/s)? m/s (b) What is the magnitude of her average velocity (in m/s)? m/sarrow_forwardA runner moves along a circular track at a constant speed. a) Both (a) and (b) are true b) Her acceleration is zero. c) Both her acceleration and her velocity are changing d) Her velocity is constant.arrow_forward
- A car is traveling along a straight highway with a speed of 72 kph (20 m/s) when the driver suddenly applies the brakes just before entering the curved section A-B, REDUCING its speed at a constant rate until it reaches point B. The 90-m long curved section A-B has a constant radius of curvature r. An accelerometer mounted on the car recorded a total acceleration of 1.74m/s² just before the car passes point B. B. I 06 1. Which of the following is FALSE regarding the car's motion along the curved section A-B? Its velocity is decreasing and is tangent to its path. Its tangential acceleration is tangent to its path. Its acceleration is increasing in magnitude. Its normal acceleration is directed towards the center of curvature of the path.arrow_forwardWhich one of the following option is correct about the uniform circular motion? a) The magnitude of velocity changes with time b) The magnitude of velocity is constant c) The acceleration is zero d) None of thesearrow_forwardA particle is moving clock wise in a circle of radius R = 10 m in uniform circular motion with a period of 60 min as shown below. a) Find the particle's displacement in unit vector notation as it moves from position 1 to position 3 and draw it on the figure. 3 R 2 b) In SI units, find the particle's speed and the magnitude of its acceleration. c) Find the particle's velocity in unit vector notation at position 2 and draw it on the figure. d) When an elevator is ascending and decelerating, its acceleration vector pointsarrow_forward
- Can a particle moving with instantaneous speed 3.00 m/s on a path with radius of curvature 2.00 m have an acceleration of magnitude 6.00 m/s2? (b) can it have an acceleration of magnitude 4.00 m/s2? in each case, if the answer is yes, explain how it can happen; if the answer is no, explain why not.arrow_forwardA circular racetrack has a radius of 500 m. What is the displacement of a bicyclist when she travels around the track from the north side to the south side? When she makes one complete circle around the track? Explain.arrow_forwardA girl on a bicycle takes 12.2 s to ride half way around a circular track of radius 20.0 m (see the figure below). (a)What is the girl's average speed (in m/s)? (b) What is the magnitude of her average velocity (in m/s)?arrow_forward
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningUniversity Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSONIntroduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
- Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningLecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-WesleyCollege Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON