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.

Question

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Answer 1

Textbook Question

Chapter 6, Problem 1CQ

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.

Expert Solution & Answer

To determine

To find whether there is any acceleration for the given case.

Answer to Problem 1CQ

No. There is a presence of acceleration, which is called as centripetal acceleration.

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.

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PROBLEM 2 A cube of mass m is placed in a rotating funnel. (The funnel is rotating around the vertical axis shown in the diagram.) There is no friction between the cube and the funnel but the funnel is rotating at just the right speed needed to keep the cube rotating with the funnel. The cube travels in a circular path of radius r, and the angle between the vertical and the wall of the funnel is 0. Express your answers to parts (b) and (c) in terms of m, r, g, and/or 0. (a) Sketch a free-body diagram for the cube. Show all the forces acting on it, and show the appropriate coordinate system to use for this problem. (b) What is the normal force acting on the cube? FN=mg58 (c) What is the speed v of the cube? (d) If the speed of the cube is different from what you determined in part (c), a force of friction is necessary to keep the cube from slipping in the funnel. If the funnel is rotating slower than it was above, draw a new free-body diagram for the cube to show which way friction…

Answer 2

Textbook Question

Chapter 6, Problem 1CQ

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.

Expert Solution & Answer

To determine

To find whether there is any acceleration for the given case.

Answer to Problem 1CQ

No. There is a presence of acceleration, which is called as centripetal acceleration.

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.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

02:31

Answer 3

Textbook Question

Chapter 6, Problem 1CQ

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.

Expert Solution & Answer

To determine

To find whether there is any acceleration for the given case.

Answer to Problem 1CQ

No. There is a presence of acceleration, which is called as centripetal acceleration.

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.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

02:31

Answer 4

Textbook Question

Chapter 6, Problem 1CQ

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.

Expert Solution & Answer

To determine

To find whether there is any acceleration for the given case.

Answer to Problem 1CQ

No. There is a presence of acceleration, which is called as centripetal acceleration.

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.

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Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

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Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

To determine

To find whether there is any acceleration for the given case.

Answer to Problem 1CQ

No. There is a presence of acceleration, which is called as centripetal acceleration.

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.

Answer 8

Expert Solution & Answer

To determine

To find whether there is any acceleration for the given case.

Answer to Problem 1CQ

No. There is a presence of acceleration, which is called as centripetal acceleration.

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.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

To determine

To find whether there is any acceleration for the given case.

Answer 12

Answer to Problem 1CQ

No. There is a presence of acceleration, which is called as centripetal acceleration.

Answer 13

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.