Saturday

October 25, 2014

October 25, 2014

Posted by **Stuck** on Thursday, April 1, 2010 at 7:53pm.

I don't know how to begin this!

- Calculus - another question -
**Damon**, Thursday, April 1, 2010 at 8:15pma = acceleration

v = Vi + a t

d = Xi + Vi t + (1/2) a t^2

30 = 0 + a t = 0 + a (10/60)

a = 30*60/10 = 180 km/hr^2

d = 0 + 0 + (1/2)(180)(10/60)^2

= 90/36

= 2.5 km

- Calculus - another question -
**Damon**, Thursday, April 1, 2010 at 8:17pmBy the way the average speed was 30/2 = 15 for 1/6 of an hour

15/6= 2.5

- Calculus - another question -
**Stuck**, Thursday, April 1, 2010 at 8:56pmThank you! So the constants (Vi and Xi) are 0...why is that?

- Calculus - another question -
**Damon**, Thursday, April 1, 2010 at 10:17pmXi is where you started, might as well be at the origin.

Vi is your speed at the start. Implied zero.

**Answer this Question**

**Related Questions**

precalc - a 21-speed bike has varying top speeds dependent on the gear it's in. ...

precalc - a 21-speed bike has varying top speeds dependent on the gear it's in. ...

english - In the following paragraph, are the words I have in capital letters ...

grammar - In the sentence...Each bike has ten gears. is "has" the verb?

Calculus--Almost figured out - Sports store is having a closing down sale, all ...

Math Help - I have to do this question in several ways like any possible way to ...

physics - A speed bike tops a hill at 3.5 m/s and accelerates steadily down hill...

Science - Physics - Count the teeth in the front and rear gears in speeds 1, 5, ...

Physics waves- help please - A police officer with good ears hears an ...

physics - there are 3 parts to my question. i need help on the last part. 1.a. A...