This activity was adapted from http://paer.rutgers.edu/pt3/experiment.php?topicid=13&exptid=155 accessed 10.51 am 18/01/2014
Based on your knowledge of projectile motion predict how far a ball will travel launched at 30 o and then at 60 o .if launched with the same force.
Explain how you arrived at this prediction.
Outline all the assumptions you have made.
Now click on the videos below to see the experiments.
- Motion with constant speed and acceleration
- Projectile motion
A ball is launched at an angle of 30 o to the horizontal and then at an angle of 60 o. Make a prediction about how far the ball will fly in both cases if the initial launch velocity is 4.8m/s in each case.
Click to see the experiment at 30 o
Click to see the experiment at 60 o
1) Was your prediction correct?
2) If the outcome did not match your prediction, should you modify the:
- fundamental ideas? Explain how
- assumptions? Explain why