The many wonders of Projectile Motion =)


Horizontal Projectile Motion:

  • d = tv
  • dx=Vx*t
  • dh=Vh*t
  • Vx is always constant
  • Time to cover dx and dv is the same
    • Two objects will fall at the same rate whether thay are being dropped vertically or shot out.

As an object falls, the y axis increases but the x axis stays the same. This means that the acceleration for the x axis is zero and the acceleration for the y axis is -9.8. You also notice that the velocities are increasing by the same amount each leg.

Vertical:

  • Vf = Vi + a t
  • d= 1/2 g t2 + Vi t
  • Acceleration= -9.8




projectile_motion_a.GIF
Frame
Time
Distance (m)
Velocity Final (m/s)
Acceleration (m/s/s)
5
0.165
0.15
1.818181818
11.01928375
6
0.198
0.22
2.222222222
11.22334456
7
0.231
0.29
2.510822511
10.86936152
8
0.264
0.38
2.878787879
10.90449954
9
0.297
0.47
3.164983165
10.65650897
10
0.33
0.56
3.393939394
10.28466483


ProjectileMotion_b.gif

Ground to Ground Projectile Motion:
As an object goes up the y axis decreases. The acceleration in vertical direction is always -9.8 m/s/s. As the object falls down the y axis increases. The x axis stays the same throughout the entire motion. This means that the acceleration for the x axis is zero.