Saturday

November 22, 2014

November 22, 2014

Posted by **Anita** on Monday, August 20, 2012 at 6:52pm.

- physics -
**Steve**, Monday, August 20, 2012 at 10:13pmstage I:

500 = 3/2 t^2

t = 18.26s

v = 3*18.26 = 54.78m/s

How can he "reduce" his speed from 54 to 70m/s in stage II?

What did I miss? Is there a typo?

- physics -
**Justin**, Tuesday, October 30, 2012 at 12:27amthe other equation you can use use is:

Vf^2=Vi^2+2AX

sqrt(2(3m/s^2)(500m))=54.78 m/s

same thing.

for the second part you use the same equation and solve for A. Then plug it in to Vf=Vi+AT, solve for T.

for the third you do the same thing.

**Answer this Question**

**Related Questions**

Math. - A spinner is divided into 8 equal sections. There are 3 yellow sections ...

Math - A spinner is divided into 8 equal sections, Each section is either blue ...

Biology - 34. The heart is divided into two major sections with two chambers in ...

Biology - 34. The heart is divided into two major sections with two chambers in ...

Biology - 34. The heart is divided into two major sections with two chambers in ...

Math - A spinner is divided into 20 equal sections and are numbered 1 through 20...

college physics - A bicycle racer sprints at the end of a race to clinch a ...

college physics - A bicycle racer sprints at the end of a race to clinch a ...

Math - A 17 foot pipe is cut into three sections. The longest section is 3 times...

Math - A stadium has two sections Tickets for section A cost $a each Tickets for...