Download the App!

Get 24/7 study help with the Numerade app for iOS and Android! Enter your email for an invite.

Get the answer to your homework problem.

Try Numerade free for 7 days

Like

Report

(I) At highway speeds, a particular automobile is capable ofan acceleration of about 1.8 $\mathrm{m} / \mathrm{s}^{2} .$ At this rate, how longdoes it take to accelerate from 80 $\mathrm{km} / \mathrm{h}$ to 110 $\mathrm{km} / \mathrm{h}$ ?

$4.630 \mathrm{s} \approx 5 \mathrm{s}$

Physics 101 Mechanics

Chapter 2

Describing Motion: Kinematics in One Dimension

Physics Basics

Motion Along a Straight Line

Motion in 2d or 3d

Newton's Laws of Motion

University of Michigan - Ann Arbor

University of Washington

Hope College

University of Winnipeg

Lectures

04:16

In mathematics, a proof is…

04:48

In mathematics, algebra is…

02:44

(II) At highway speeds, a …

03:08

00:47

V A certain car is capable…

01:39

Traveling with an initial …

04:36

(II) A car traveling 88 $\…

01:38

(I) If a car rolls gently …

02:04

A car accelerates at a con…

01:40

A commuter backs her car o…

01:33

01:47

01:16

What is the acceleration o…

00:44

If a car accelerates from …

(II) A car slows down unif…

01:35

(II) A car traveling 95 $\…

05:22

(II) An unmarked police ca…

02:24

Suppose you read about a n…

03:38

The speed limit on some in…

03:04

How long does it take an a…

0:00

(I) A car accelerates from…

so here the time can be found from the average acceleration equation the average acceleration equation, so the average acceleration would be equal to the change in velocity divided by the change in time. Therefore, the change in time would be equal to the change in velocity divided by the average acceleration. Aah! This would be equal to 110 kilometers per hour, minus 80 kilometers per hour, divided by the average acceleration of 1.8 meters per second squared. Uh, let's convert so this would be equal to 30 kilometers per hour. We're going to multiply by one meters per second for every 3.6 kilometers per hour and then again divided by 1.8 meters per second squared. And this is giving us approximately four 0.63 seconds. So this would be the time it takes to accelerate from 80 kilometers per hour to 110 kilometers per hour. That is the end of the solution. Thank you for watching

View More Answers From This Book

Find Another Textbook

In mathematics, a proof is a sequence of statements given to explain how a c…

In mathematics, algebra is one of the broad parts of mathematics, together w…

(II) At highway speeds, a particular automobile is capable of an acceleratio…

V A certain car is capable of accelerating at a rate of 0.60 m/s2 .How long …

Traveling with an initial speed of $70 \mathrm{km} / \mathrm{h},$ a car acce…

(II) A car traveling 88 $\mathrm{km} / \mathrm{h}$ is 110 $\mathrm{m}$ behin…

(I) If a car rolls gently $\left(v_{0}=0\right)$ off a vertical cliff, how l…

A car accelerates at a constant rate from $15 \mathrm{m} / \mathrm{s}$ to $2…

A commuter backs her car out of her garage with an acceleration of $1.40 \ma…

A commuter backs her car out of her garage with an acceleration of 1.40 $\ma…

What is the acceleration of a car that moves at a steady velocity of 100 km/…

If a car accelerates from rest at a constant $5.5 \mathrm{m} / \mathrm{s}^{2…

(II) A car slows down uniformly from a speed of 18.0 $\mathrm{m} / \mathrm{s…

(II) A car traveling 95 $\mathrm{km} / \mathrm{h}$ is 110 $\mathrm{m}$ behin…

(II) An unmarked police car traveling a constant 95 $\mathrm{km} / \mathrm{h…

(II) A car slows down uniformly from a speed of 28.0 m/s to rest in 8.00 s. …

Suppose you read about a new car that can go from 0 to $100 \mathrm{km} / \m…

The speed limit on some interstate highways is roughly 100 $\mathrm{km} / \m…

How long does it take an automobile traveling $60.0 \mathrm{km} / \mathrm{h}…

(I) A car accelerates from 14 m/s to 21 m/s in 6.0 s. What was its accelerat…

02:41

$\bullet$ A 2.00 kg frictionless block is attached to an ideal spring with f…

01:44

(II) A $0.140-\mathrm{kg}$ baseball traveling 35.0 $\mathrm{m} / \mathrm{s}$…

$\bullet$ The range of human hearing. A young person with normal hearing can…

07:35

A $\mathrm{A} 20.0 \mu \mathrm{F}$ capacitor is charged to a potential diffe…

04:37

A 4.00$\mu \mathrm{F}$ and a 6.00$\mu \mathrm{F}$ capacitor are connected in…

03:42

$\bullet$ Basal metabolic rate. The basal metabolic rate is the rate at whic…

03:11

$\bullet$ When a toy car is rapidly scooted across the floor, it storese…

01:22

Make a rough cstimate of the volume of your body (in m').

04:22

$\bullet$ An alien spacecraft is flying overhead at a great distance asy…

02:23

You're holding a hose at waist height and spraying water horizontally w…