/*! 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} Q99P A swimmer moves through the wate... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 8: Q99P (page 211)

A swimmer moves through the water at an average speed of 0.22 m/s. The average drag force is 110 N. What average power is required of the swimmer?

Short Answer

Expert verified

Average power required of the swimmer is 24 W .

Step by step solution

01

Given data:

An average speed of the swimmer through the water, v = 0.22 m/s

Average drag force on the swimmer, F = 110 N

02

To understand the concept:

Using the formula between power, force, and velocity, you can find an average power required of the swimmer.

Formula:

P = Fv

Here, P is the average power, F is the average drag force, and v is the average speed.

03

Calculate the average power required of the swimmer:

The average power required of the swimmer is,

P = Fv

Since the direction of the force and velocity is the same, Power is,

P=(110N)(0.22m/s)=24.2W鈮�24W

Hence, an average power required of the swimmer is 24 W .

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 block with mass m =2.00 kg is placed against a spring on a frictionless incline with angle 30.0掳 (Figure). (The block is not attached to the spring.) The spring, with spring constant k =19.6 N/cm, is compressed 20.0 cm and then released. (a) What is the elastic potential energy of the compressed spring? (b) What is the change in the gravitational potential energy of the block-Earth system as the block moves from the release point to its highest point on the incline? (c) How far along the incline is the highest point from the release point?

You push a 2.0 kg block against a horizontal spring, compressing the spring by 15 cm. Then you release the block, and the spring sends it sliding across a tabletop. It stops 75 cm from where you released it. The spring constant is 200N/m. What is the block-table coefficient of kinetic friction?

A 75 gFrisbee is thrown from a point 1.1 mabove the ground with a speed of 12 m/s.When it has reached a height of 2.1 m, its speed is 10.5 m/s. What was the reduction in Emec of the Frisbee-Earth system because of air drag?

The magnitude of the gravitational force between a particle of massm1and one of massm2is given byf(x)=Gm1m2x2where Gis a constant and xis the distance between the particles. (a) What is the corresponding potential energy function U(x)? Assume thatU(x)鈫�0asx鈫�鈭�and that xis positive. (b) How much work is required to increase the separation of the particles fromx=x1tox=x1+d?

A horizontal force of magnitude 35.0 Npushes a block of mass 4.00 kgacross a floor where the coefficient of kinetic friction is 0.600. (a) How much work is done by that applied force on the block-floor system when the block slides through a displacement of 3.00 macross the floor? (b) During that displacement, the thermal energy of the block increases by40.0 J. What is the increase in thermal energy of the floor? (c) What is the increase in the kinetic energy of the block?
See all solutions

Recommended explanations on Physics Textbooks

Magnetism and Electromagnetic Induction

Read Explanation

Physics of Motion

Read Explanation

Radiation

Read Explanation

Force

Read Explanation

Classical Mechanics

Read Explanation

Particle Model of Matter

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.