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Bearman94

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## Homework Statement

Hi guys, I am not one to ask for help but i missed ALOT of school because I got sick and I was wondering if anyone could solve three problems for me and help me out!

Thanks in advance !

Problem 1-

A plane is dropping a supply of coconuts to survivors of the USS Minnow, who are stranded on a desert island. If the plane is 2km in the air and is traveling at 200 m/s, How far in front of the island should the supplies be dropped?

Problem 2- A watermelon is thrown off the 10th (40 meters above the ground) floor of a building. It is launched with a speed of 30 m/s at an angle of 40 degrees above the horizontal. How far away does it land?

Problem 3- A football is kicked at 25 m/s at an angle of 50 Degrees.

How fast is the football traveling when it strikes the ground and what direction is it traveling.

show work please.

and once again, I'm very grateful to anyone who will help me out! I am trying to do better in this class and I just happened to get sick:/

## Homework Equations

All can be found here - http://tutor4physics.com/projectilemotion.htm

And on other sites, but none seem to copy + Paste

Equation of Trajectory (Path of projectile)

## The Attempt at a Solution

AND I have read the FAQ and the statement, however, I am really in a bad position here, I have attemped these but I know that it is not right, and Posting it would just probably make me look dumb and contribute nothing. I know how projectile motion works and I have done about 80% of my Homework, but these 3 problems are stumping me.

For the Watermelon Problem All i know is the X and Y Componants

Which are Cos(40Deg) * 30 M/s and Sin(40Deg) * 30 m/s

And that A=Change in V / T

so

- 9.8m/s^2= -30 /t

-9.8m/s^2 * t = -30

T = 3.06

And then I know you must use the 40m To make another vector to complete the problem.

For the Football Problem I know.

How Long it is in the air- 3.9 Seconds

Because Ttotal=38.3m/s / 9.8 m/s

How high it goes= 18.7m

How far away does it land 62.8 m

because Range= (25M/S)^2 * Sin2(50) /

9.8 M/s^2But for the plane problem I am totally lost

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