A supply plane needs to drop a package of food to scientists working on a glacier in Greenland. The plane flies 130 m above the glacier at a speed of 110 m/s . You may want to review (Page) . For help with math skills, you may want to review: Mathematical Expressions Involving Squares For general problem-solving tips and strategies for this topic, you may want to view a Video Tutor Solution of Dock jumping. How far short of the target should it drop the package?

And now we can find the final distance on the x axis using the formula:

The velocity on x not changes and is the same plane spped , if we replace we got:

Explanation:

For this case we have a illustration for the problem in the figure attached.

We need to find how far short of the target should be the plane, we have the following info given:

How far short of the target should it drop the package?

First we can find the total time in order to reach the groung using the following kinematic formula:

And replacing we have:

And solving for t we got:

And now we can find the final distance on the x axis using the formula:

The velocity on x not changes and is the same plane spped , if we replace we got: