# Conceptual problem Dynamics Hibbeler 12 Edition

• elvis.2

## Homework Statement

Pl2-4. The pilot tells you the wingspan of her plane and her
constant airspeed. How would you determine the acceleration
of the plane at the moment shown? Use numerical values and
take any necessary measurements from the photo.

Here is the photo to the problem
http://imageshack.us/photo/my-images/843/conceptual.jpg/

## Homework Equations

All data and revelant questions are given on the problem statement

## The Attempt at a Solution

I try to measure from the photo but didn't know if it was accurate

Guiding questions:
What did you measure from the photo?
You need to say what you actually did.

What are the relevant equations?
None are provided in the problem statement.

Note: the problem asks for a strategy, not a solution. What was your strategy?

I try to measure the span of the smoke created by the plane in order to establish some numerical values and see if that relates to the acceleration but it also talks about the wingspan of the plane, that is part of the confusion I have.

A measurement of so-and-so centimeters on the picture tells you nothing about how far the plane actually went or the dimensions of the motion. If only there was some known length in the picture that you could use as a scale... do you know what kind of acceleration would be important here: you are told the plane flies at a constant speed?

Exactly as you there is not much given data and measurements won't help much. Well from the photo it can be say that the plane flies along a circular path but then if that is true, it would have tangential and normal components of acceleration. The planes does flies at constant speed.

It doesn't matter what the plane was doing before it got to its current position, as shown by the smoke trail.

All that matter is what it is doing when the photo was actually taken.