Q.30 A 1500 kg car skids to a halt on... [FREE SOLUTION]

Chapter 6: Q.30 (page 155)

A 1500 kg car skids to a halt on a wet road where $渭_{k}$ $= 0.50$ . How fast was the car traveling if it leaves role="math" localid="1648126746388" $65 m$ -long skid marks?

Short Answer

Expert verified

The speed of the car at the moment it skidded is $25.69 m / s$

Step by step solution

Content Introduction

Velocity is a mechanical number that indicates the change in distance of an object in unit time in a specified direction. The metric unit is the meter per second. It explains how the thing moves.

Content Explanation

Using Newton's second law

Here, $F_{g}$ is the gravitational force, $m$ is the mass, $a$ is the acceleration.

Substitute the values, where

$m = 1500 k g a = 10 m / s$

$F_{g} = m a F_{g} = (1500) (10) F_{g} = 15000 N$

Now $F_{f} = 渭 F_{n} F_{f} = (0.5) (1500) F_{f} = 7500 N$

To find acceleration we use

$A = 5 m / s^{2}$

The initial velocity , here $V_{f} = 0, d = 65 m, a = 10$

$V_{f} = V_{i} + 2 a d 2 a d = V_{i} = 25.69 m / s$

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

Recommended explanations on Physics Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

91影视

A 1500 kg car skids to a halt on a wet road where $渭_{k}$ $= 0.50$ . How fast was the car traveling if it leaves role="math" localid="1648126746388" $65 m$ -long skid marks?

Short Answer

Step by step solution

Content Introduction

Content Explanation

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Physics Textbooks

Astrophysics

Force

Nuclear Physics

Measurements

Further Mechanics and Thermal Physics

Physics of Motion

Study anywhere. Anytime. Across all devices.

91影视

A 1500 kg car skids to a halt on a wet road where 渭k=0.50. How fast was the car traveling if it leaves role="math" localid="1648126746388" 65m-long skid marks?

Short Answer

Step by step solution

Content Introduction

Content Explanation

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Physics Textbooks

Astrophysics

Force

Nuclear Physics

Measurements

Further Mechanics and Thermal Physics

Physics of Motion

Study anywhere. Anytime. Across all devices.

A 1500 kg car skids to a halt on a wet road where $渭_{k}$ $= 0.50$ . How fast was the car traveling if it leaves role="math" localid="1648126746388" $65 m$ -long skid marks?