# physics

posted by .

3. A car speeds up from 10.0 m/s to 30.0 m/s in 3.0 s. What is its acceleration? In your response, show your work, the given and unknown quantities, the equation and any necessary algebra. Express your answer with the correct number of significant digits.

• physics -

a = (Vf - Vo) / t,
a = (30 - 10) / 3 = 6.67m/s^2.

## Respond to this Question

 First Name School Subject Your Answer

## Similar Questions

1. ### physics

Vroom-vroom! As soon as a traffic light turns green, a car speeds up from rest to 50.0 mi/h with a constant acceleration of 8.40 mi/h·s. In the adjoining bike lane, a cyclist speeds up from rest to 20.0 mi/h with a constant acceleration …
2. ### physics

As soon as a traffic light turns green, a car speeds up from rest to 50.0 mi/h with a constant acceleration of 9.90 mi/h·s. In the adjoining bike lane, a cyclist speeds up from rest to 20.0 mi/h with a constant acceleration of 13.5 …
3. ### physics

Question Part Points Submissions Used 1 2 3 4 5 0/5 –/5 5/5 0/5 0/5 1/10 0/10 1/10 2/10 2/10 Total 5/25 A car initially traveling eastward turns north by traveling in a circular path at uniform speed as in the figure below. The length …
4. ### physics

A car initially traveling eastward turns north by traveling in a circular path at uniform speed as in the figure below. The length of the arc ABC is 210 m, and the car completes the turn in 38.0 s. (a) What is the acceleration when …
5. ### physics

2. A car accelerates uniformly from +10.0 m/s to +40.0 m/s over a distance of 125 m. How long did it take to go that distance?
6. ### physics

Cars A and B are racing each other along the same straight road in the following manner: Car A has a head start and is a distance DA beyond the starting line at t=0. The starting line is at x=0. Car A travels at a constant speed vA. …
7. ### Physics

Consider two toy cars. Car A starts from rest and speeds up with constant acceleration for a time delta t until it reached a speed of v and then continues to travel at this speed. At the moment car A reaches its maximum speed, car …
8. ### Physics

Consider two toy cars. Car A starts from rest and speeds up with constant acceleration for a time delta t until it reached a speed of v and then continues to travel at this speed. At the moment car A reaches its maximum speed, car …
9. ### Physics

Consider two toy cars. Car A starts from rest and speeds up with constant acceleration for a time delta t until it reached a speed of v and then continues to travel at this speed. At the moment car A reaches its maximum speed, car …
10. ### Phsyics HELP!

A car accelerates uniformly from +10.0 m/s to +50.0 m/s over a distance of 225 m. How long did it take to go that distance?

More Similar Questions