6. In what direction does the centripetal force act??
- Towards the ground
- Away from the centre
- Towards the centre
- In the direction of motion
7. Which is the correct equation for working out angular velocity?
- W=V/R
- W=D/T
- W=VR
- W=R/V
8. The earth rotates around its axis. To show what it's speed is, which equation would we use?
- a=W^2r
- F=mv^2/r
- W=2Pi / T
- W=V/r
