# Physics 8-27-12 Velocity Problems 2

PHYSICS – Velocity problems from Monday – you did a great job on these! Now let’s see what you can do on your own! r you.

Good luck on those five problems. No peeking! Try not to look at your notes, but if you do, work it again without your notes! And make sure to do more than just show the math – be sure that I can also follow your logic in the formulas. Ditto with units, etc. Don’t give up on the tortoise and the hare. A couple of hints: remember the distance the tortoise travels is the same as the distance the hare travels plus the extra 20 cm he was ahead. Also, the time the hare raced is equal to the time of the tortoise minus those two minutes he rested. Now go have fun! π

## 7 thoughts on “Physics 8-27-12 Velocity Problems 2”

1. Darby T P5 says:

Ms. Skinner can we go over number 21 if we have time after the lab?

• Kelsey D P5 says:

On number 21, try starting with the distance formula for the tortoise by plugging in all of the knowns for the tortoise. You will end up with 2 unknowns, but you will be able to easily plug them into the distance formula for the hare so that there is only one unkown. Make sure you look at the end of Ms. Skinner’s note above the video.

• Ms. Skinner says:

Darby – Glad to! But I’m sure you’ll have it figured out by then! π

2. Kever L P5 says:

I’m a tad bit confused on the tortoise and the hare. If the hare rested for two minutes, isn’t his time still the same of that of the hare since technically the “clock” would be still be going, or is it like the hare just didn’t even start the race for two minutes?

• Katie S P5 says:

Kever, think about it this way…for two minutes the hare was not moving but the tortoise was. Think about the time in relation to velocity and distance. Does that make sense? If not, we’ll talk in physics.

3. Kelsey D P5 says:

We are still having a help session tomorrow morning at 7:15 correct?

4. Josh C P5 says:

Can we have a help session next week?