A car can round an 80-meter radius curve at a maximum speed of 20 m/s. Find the maximum speed the car can travel on the same surface

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
icon
Related questions
Question

1.A car can round an 80-meter radius curve at a maximum speed of 20 m/s. Find the maximum speed the car can travel on the same surface if the radius of the curve is increased to 320 meters.

 
Group of answer choices
40 m/s
50 m/s
30 m/s
60 m/s
 
2.A 0.40 kg object hangs at the end of a 0.50 m string.  It is then rotated in a vertical circle. The angular speed of the object is 8 rad/s as it passes the bottom of the circular path.  Find is the tension in the string at this point.
 
Group of answer choices
17 N
10 N
13 N
11 N
 
3. A roller coaster car passes the top of an 8 m radius vertical loop. At this point the normal force exerted on the passengers by the seat is ¼ their weight. Find the speed of the roller coaster car at this point.
 
Group of answer choices
7 m/s
15 m/s
13 m/s
10 m/s
 
4.The work done by a centripetal force acting on an object moving at a constant linear speed is:

I. zero because the centripetal force is perpendicular to the displacement of the object.
II. not zero because a force acts on the object and the object moves
III. not zero because energy is required to turn an object
IV. zero because the object is moving with constant speed

Group of answer choices
I
III
II
IV
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
College Physics
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
University Physics (14th Edition)
University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON
Introduction To Quantum Mechanics
Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press
Physics for Scientists and Engineers
Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:
9780321820464
Author:
Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:
Addison-Wesley
College Physics: A Strategic Approach (4th Editio…
College Physics: A Strategic Approach (4th Editio…
Physics
ISBN:
9780134609034
Author:
Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:
PEARSON