Posted by **Emma** on Tuesday, August 28, 2007 at 5:11pm.

Could you please check my answers and units.Also, help me with 3 and 4, I dont quite understand them. Thanxs!

1. An automobile starts from rest and accelerates at 3m/s2 for 4 seconds. How fast is it going after acceleration?

-I got 12 m/s

3. At time = 0 an automobile already traveling at 30 km/hr. accelerates at 3m/s2 for 2 seconds. During these two seconds, how far does it go?

-I got 12 m/s

4. An automobile is traveling at 30 km/hr. It accelerates at 3 m/s2 until it has covered 100 meters.. What is its new velocity?

- 6030 (not sure about units)

## Answer this Question

## Related Questions

- Physics - Could you please check my answers and units. Thanxs! 1. An automobile ...
- Science - I have some equations that I would like checked. Thanxs! 1. An ...
- Physics Problems - I have a few questions that I dont understand and are having ...
- Physics - Having trouble determ the formulas for the follow problems. 2. If an ...
- Grade 11th Physics - A bus starts from rest and accelerates uniformly for 20 ...
- COLLEGE PHYSICS - A 1100kg car starts from rest, accelerates for 5 seconds. The ...
- Physics - An automobile accelerates from rest at 2.4 m/s2 for 29 s. The speed is...
- Physics - An automobile accelerates from rest at 1.3 m/s 2 for 19 s. The speed ...
- physics - An automobile accelerates from rest at 1.3m/s^2 for 19s. The speed is ...
- Honors Physics - An automobile accelerates from rest at 1.3 m/s 2 for 19 s. The ...