11/13 HS Physics Class and homework due 11/20

Hi folks,

Today we spent the majority of the day doing a fairly complex lab where the students had take last week's lab quite a bit farther by attempting to get a Hot Wheels car to reach enough speed to jump EXACTLY 1.5 m through the air.  First everyone needed to calculate the speed needed to jump that far and then they needed to try to find out how long the car needed to accelerate to reach that speed.  This was easily an AP level lab  (I did it in college) and the students really worked hard to try to get it right.  

From looking over the quizzes it looks like quite a few folks could use the opportunity to study up on these math concepts.  For homework this week, I'd like you to do the following problems.  These are just the standard "Throw the ball off the tower" problems that we've done in class and that yesterday and today's lab was based off of.  Please feel free to check your notes if your not sure how to do these.

1.  If a cannon was mounted on a 5 m tower and fired a cannon ball at 15 m/s how far would the cannon ball go before it landed?

2.   If a cannon was mounted on a 8 m tower and fired a cannon ball at 15 m/s, how far would the cannon ball go before it landed?

3.  If a cannon was mounted on a 10 m tower and fired a cannon ball  at 15 m/s, how far would the cannon ball go before it landed?

4.  If a cannon was mounted on a 10 m tower and you wanted to hit a target 25 m away, how fast would you need to fire the cannon?

5.  If a cannon was mounted on a 15 m tower and you wanted to hit a target 20 m away, how fast would you need to fire the cannon?

6.  If a cannon was mounted on a 5 m tower and you wanted to hit a target 30 m away, how fast would you need to fire the cannon?

7.  If a cannon was mounted on a 5 m tower and you wanted to hit a target 20 m away, how fast would you need to fire the cannon?

8.   If a cannon was mounted on a 5 m tower and you wanted to hit a target 5 m away, how fast would you need to fire the cannon?

Now that you've got answers for all those questions go to this site hit the "Intro" button and set up the scenarios above to test your answers.  You can click and drag on the tower to make it taller or shorter.