Posted by **Emma** on Sunday, August 26, 2007 at 10:38pm.

I have some equations that I would like checked. Thanxs!

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

3m/s^2 / 4 = .75 m/s

2. If an automobile travels at 30 km/hr. for 2 hours, how far does it go?

d=(30 km/hr)(2 hr)= 60 km

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? (This one I don't understand)

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? (This one I don't understand)

## Answer This Question

## Related Questions

- Physics - Could you please check my answers and units. Thanxs! 1. An automobile ...
- Physics - Could you please check my answers and units.Also, help me with 3 and 4...
- Physics - A tortoise and hare start from rest and have a race. As the race ...
- physics with 6 questions - Two cars start from rest at a red stop light. When ...
- Physics - Two cars start from rest at a red stop light. When the light turns ...
- physics please help! - A car driving along a straight road increases its ...
- Physics - If a car starts from rest and travels for 5.0 seconds with a uniform ...
- physics - Two cars start from rest at a red stop light. When the light turns ...
- physics - Two cars start from rest at a red stop light. When the light turns ...
- Physics - Two cars start from rest at a red stop light. When the light turns ...

More Related Questions