/*! 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} Q. 38 The coefficient of kinetic frict... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 7: Q. 38 (page 179)

The coefficient of kinetic friction between the 2.0kgblock in FIGURE P7.38 and the table is 0.30. What is the acceleration of the 2.0kg block?

Short Answer

Expert verified

Acceleration of the block is6.91m/s2.

Step by step solution

01

Given information

Coefficient of friction between 2kgblock and table, 渭=0.3

Given the figure of three blocks

02

Explanation

Consider the net force applied by 1kgblock

localid="1649647806258" F1=1kg脳9.81m/s2=9.81Nrighttoleft

The friction force applied to the block 2

localid="1649647844745" F2=2kg脳0.3脳9.81m/s2=5.8Nrighttoleft

The force applied by the block 3

localid="1649647866757" F3=3kg脳9.81m/s2=29.43Nlefttoright

Net force o block 2

localid="1649647898415" F=29.43N-5.8N-9.81N=13.82N

The acceleration of the block is calculated as

localid="1649647916525" F=ma13.82N=2kg脳aa=6.91m/s2

Acceleration of the block is6.91m/s2.

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 rope of lengthL and mass m is suspended from the ceiling. Find an expression for the tension in the rope at position y, measured upward from the free end of the rope.

A 50-cm-diameter, 400 g beach ball is dropped with a 4.0 mg ant riding on the top. The ball experiences air resistance, but the ant does not. What is the magnitude of the normal force exerted on the ant when the ball鈥檚 speed is 2.0 m/s?

Two-thirds of the weight of a 1500kg car rests on the drive wheels. What is the maximum acceleration of this car on a concrete surface?

The century-old ascensores in Valparaiso, Chile, are picturesque cable cars built on stilts to keep the passenger compartments level as they go up and down the steep hillsides. As FIGURE P7.43shows, one car ascends as the other descends. The cars use a two-cable arrangement to compensate for friction; one cable passing around a large pulley connects the cars, the second is pulled by a small motor. Suppose the mass of both cars (with passengers) is 1500kg, the coefficient of rolling friction is 0.020, and the cars move at constant speed. What is the tension in (a) the connecting cable and (b) the cable to the motor?

How does a rocket take off? What is the upward force on it?Your explanation should include an interaction diagram and free-body diagrams of the rocket and of the parcel of gas being exhausted.
See all solutions

Recommended explanations on Physics Textbooks

Fundamentals of Physics

Read Explanation

Famous Physicists

Read Explanation

Space Physics

Read Explanation

Torque and Rotational Motion

Read Explanation

Electromagnetism

Read Explanation

Magnetism and Electromagnetic Induction

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.