Thread: Elementary Physics question

1. Elementary Physics question

A bicyclist starts from at an acceleration of (1.2m/s^2) (1.2 meter per second squared).. how far must he travel to reach a speed of 7m/s.(that 7 meters per second..not second squared)..Can you show how to do this, what is needed to know?

2. How do you handle problems that have a constant acceleration?

3. From what I can tell you need to know the initial speed of the cyclist

4. Do you know the definition of acceleration?

Basically, we can say in algebra that:

$a = \frac{v - u}{t}$

That is acceleration (constant) is the rate of change of velocity.

From there, you can derive other formulae that can help you better than others depending on what is given.

5. 5.83...im confused because the time goes from seconds squared to just seconds

6. When the acceleration is constant, what does the position function look like?

7. what a waste of time...

8. Excuse me? What's a waste of time?

9. So, you rather get away with only the answer with nothing learnt from what you didn't understand?