/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q22DQ A nonzero net force acts on an o... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 1: Q22DQ (page 194)

A nonzero net force acts on an object. Is it possible for any of the following quantities to be constant: the object鈥檚 (a) speed; (b) velocity (c) Kinetic energy.

Short Answer

Expert verified

The quantities which are constant are: (a) speed and (c) Kinetic energy

Step by step solution

01

Determination of the quantities which are constant

Yes, it is possible for speed and kinetic energy to be constant.

02

Explanation of the reason for quantities to be constant

(a) Yes, the particle鈥檚 speed remains constant if the net force does zero work during a displacement.

For instance, the net force is radially inward and does no work for a particle moving in a circle at a constant speed.

(b) No, the velocity will not remain constant because the net force produces an acceleration, which is given by;

鈭�F鈫�=ma鈫�

(c) Yes, the kinetic energy remains constant as the speed remains constant and kinetic energy depends upon the speed of the particle and is independent of the velocity

Thus, the following quantities remain constant: a) speed and (c) Kinetic energy

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

A shower head has 20 circular openings, each with radius 1.0 mm. The shower head is connected to a pipe with radius 0.80 cm. If the speed of water in the pipe is 3.0 m/s, what is its speed as it exits the shower-head openings?

A cube is placed so that one corner is at the origin and three edges are along the x-, y-, and z-axes of a coordinate system (Fig. P1.80). Use vectors to compute (a) the angle between the edge along the z-axis (line ab) and the diagonal from the origin to the opposite corner (line ad), and (b) the angle between line ac (the diagonal of a face) and line ad.

Question: A car鈥檚 velocity as a function of time is given byvxt=伪+尾t2, where伪=3.00m/sand 尾=0.100m/s3.(a) Calculate the average acceleration for the time interval t=0tot=5.00s. (b) Calculate the instantaneous acceleration forrole="math" t=0tot=5.00s.

(c) Draw vx-tandax-tgraphs for the car鈥檚 motion betweent=0tot=5.00s.

In 2005 astronomers announced the discovery of large black hole in the galaxy Markarian 766 having clumps of matter orbiting around once every27鈥�hours and moving at30,000鈥�km/s . (a) How far these clumps from the center of the black hole? (b) What is the mass of this black hole, assuming circular orbits? Express your answer in kilogram and as a multiple of sun鈥檚 mass. (c) What is the radius of event horizon?

A cube of oak wood with very smooth faces normally floats in water. Suppose you submerge it completely and press one face flat against the bottom of a tank so that no water is under that face. Will the block float to the surface? Is there a buoyant force on it? Explain.
See all solutions

Recommended explanations on Physics Textbooks

Magnetism

Read Explanation

Physics of Motion

Read Explanation

Circular Motion and Gravitation

Read Explanation

Modern Physics

Read Explanation

Force

Read Explanation

Electricity

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.