A force of 450 Newtons is needed to push a crate across a horizontal floor at aconstant speed. The frictional force acting on the crate while it is sliding across thefloor must be1) 450 N2) less than 450N3)greater than 450 N

Answered: Image /qna-images/answer/5cdd07d1-0867-4b07-8337-980954f70843.jpg

Answered: A force of 450 Newtons is needed to…

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter5: Displacement And Force In Two Dimensions

Section5.2: Friction

Problem 18PP

See similar textbooks

Similar questions

A horizontal force of 95.0 N is applied to a 60.0-kg crate on a rough, level surface. If the crate accelerates at 1.20 m/s2, what is the magnitude of the force of kinetic friction acting on the crate?
If a leg is suspended by a traction setup as shown in Figure 4.30, what is the tension in the rope? Figure 4.30 A leg is suspended by a traction system in which wires are used to transmit forces. Frictionless pulleys change the direction of the force T without changing its magnitude.
A dockworker loading crates on a ship finds that a 20.0-kg crate, initially at rest on a horizontal surface, requires a 75.0-N horizontal force to set it in motion. However, after the crate is in motion, a horizontal force of 60.0 N is required to keep it moving with a constant speed. Find the coefficients of static and kinetic friction between crate and floor.
Describe two examples in which the force of friction exerted on an object is in the direction of motion of the object.
A man exerts a horizontal force of 112 N on a refrigerator of mass 42.0 kg. If the refrigerator doesnt move, what is the minimum coefficient of static friction between the refrigerator and the floor? (See Section 4.6.)
According to Newtons second law of motion, when an object is acted upon by an unbalanced force, what can be said about the acceleration? (3.3) (a) It is inversely proportional to the objects mass. (b) It is zero. (c) It is inversely proportional to the net force. (d) It is independent of mass.
A force is a quantity that is ___ of producing motion or a change in motion. (3.1)
Drag Force and Terminal Speed The terminal velocity of a person falling in air depends upon the weight and the area of the person facing the fluid. Find the terminal velocity (in meters per second and kilometers per hour) of an 80.0-kg skydiver falling in a pike (headfirst) position with a surface area of 0.140m2 .
Which is true of the force pair of Newtons third law? (3.4) (a) The two forces never produce an acceleration. (b) The two forces act on different objects. (c) The two forces always cancel each other. (d) The two forces are in the same direction.
Describe a Situation in which one a force on and, as a consequence, experiences a force that is equal in magnitude and opposite in direction, Which of Newton’s of motion apply?
When you learn to drive, you discover that you need to let up slightly on the brake pedal as you come to a stop or the car will stop with a jerk. Explain this in terms of the relationship between static and kinetic friction.
A concept map is a visual representation of concepts and their connections. Create a concept map including the five specific forces listed in Table 5.1 and the four forces discussed in Section 5.10. Justify the placement of each force.

Recommended textbooks for you

Glencoe Physics: Principles and Problems, Student…

Physics

ISBN:

9780078807213

Author:

Paul W. Zitzewitz

Publisher:

Glencoe/McGraw-Hill

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

College Physics

Physics

ISBN:

9781285737027

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

Glencoe Physics: Principles and Problems, Student…

Physics

ISBN:

9780078807213

Author:

Paul W. Zitzewitz

Publisher:

Glencoe/McGraw-Hill

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

College Physics

Physics

ISBN:

9781285737027

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

An Introduction to Physical Science

Physics

ISBN:

9781305079137

Author:

James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Publisher:

Cengage Learning

University Physics Volume 1

Physics

ISBN:

9781938168277

Author:

William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:

OpenStax - Rice University

Physics for Scientists and Engineers: Foundations…

Physics

ISBN:

9781133939146

Author:

Katz, Debora M.

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS

A force of 450 Newtons is needed to push a crate across a horizontal floor at a constant speed. The frictional force acting on the crate while it is sliding across the floor must be 1) 450 N 2) less than 450N 3) greater than 450 N