Unit 3
Projectile motion.
A ball launched through the air: two motions at once, the angle that flies farthest, and what the air changes.
Before this unit
- Motion in a line
- Trigonometry Mathematics
The unit, lesson by lesson
Lessons
5 lessons · 14 practice questions · about 2 hours
Motion with constant acceleration
A cart on a track, a fan pushing with a constant force, and a mark every half second. What happens to the gaps, and how do you work out the distance?
Two motions at once
A ball launched at an angle moves across and up at the same time. What happens to each part of its velocity, and what is its velocity at the top?
Range and angle
Hit the flag, find the angle that goes farthest, and work out the range from the speed and the angle.
Launching from a height
The cannon moves up onto a tower. How long is the ball in the air now, and is 45 degrees still the best angle?
What the air changes
Until now every shot flew without air. Add air resistance and the parabola breaks, the ball lands closer, and the best angle drops.