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September 20, 2014

September 20, 2014

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

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)

- Physics -
**bobpursley**, Tuesday, August 28, 2007 at 6:11pm3. No. distane= vi*t + 1/2 a t^2

I will be happy to critique your work. Be certain to change km/hr to m/s

4. No. vf= sqrt (vi^2 + 2*a*d)

be certain vi is in m/s units.

**I will be happy to critique your work or thinking**

**Answer this Question**

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