Guesstimation by Laurence Weinstein & John A. Adams

Author:Laurence Weinstein & John A. Adams [Weinstein, Laurence & Adams, John A.]
Language: eng
Format: epub
Tags: Science
Published: 2011-01-20T06:00:00+00:00

January 23, 2008

Time: 11:50am

chapter06.tex

6.3.1

Crash!

In the interests of researching this book, John offers to crash his car into a hard barrier at highway speed.

What force would be exerted on his body as he stopped? (Assume that he is wearing his seat belt and his air bag deploys properly.)

* * * * * * * * * * * * * * * * *

ft). 2

and

1

(between

m

0.5

about

crumples

car

The

HINT:

crash.

the

uring

d

crumples

car

his

of

nd

e

front

the

that

amount

the

is

involved

istance

d

The

HINT:

car.

his

as

rate

same

the

at

decelerates

he

that

so

seat

his

in

him

hold

bag

air

and

belt

seat

The

HINT:

speed.

and

mass

his

Estimate

HINT:

crash?

the

before

energy

kinetic

John’s

is

What

HINT:

crash.

the

uring

d

travels

he

distance

the

and

energy

kinetic

in

change

his

estimate

to

need

will

You

HINT:

139

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