- Projectile motion is basically a vertical uniform acceleration motion (with
*a* = 9.81 m s^{-2} downward) combined with a horizontal constant speed motion.
- (xmdemo)
- (xmdemo)

- For a projectile launched at speed
*u* at an angle of *θ*, we can first obtain

- The vertical motion can then be calculated using

- The horizontal motion can be calculated using

- The maximum height
*H* is dependent only on *u*_{y}. In fact, *H* ∝ *u*_{y}^{2}

- The time taken to reach the peak
*t*_{p}, and the time of flight *t*_{f} are both dependent only on *u*_{y}. In fact, both are proportional to *u*_{y}.

- The range
*R* is dependent on both *u*_{x} and *u*_{y}.

- For the same launch speed, maximum range at achieved at launch angle of 45°.

- Since sin2
*θ* is symmetrical about *θ* = 45°, projectiles launched at *θ* and (90° – *θ*) land at the same spot.

Click here for illustrations of how various parameters affect a projectile’s flight paths.

### Like this:

Like Loading...

*Related*