projectile motion let’s go skydiving! speed is the distance traveled per unit time. velocity is an...
TRANSCRIPT
Projectile Motion
Let’s Go Skydiving!
Speed is the distance traveled per unit time.
Velocity is an object's speed and direction of motion.
Acceleration is a change in velocity over a certain period of time.
Gravity tends to pull all objects toward the center of the earth.
Gravitational Acceleration is the constant describing the acceleration of any object falling toward the earth.
-9.8 m/sec2
-32 ft/sec2
0 Seconds
Velocity: 0 ft/sec
Acceleration: 32 ft/sec/sec
1 Second
Velocity: 32 ft/sec
Acceleration: 32 ft/sec/sec
2 Seconds
Velocity: 64 ft/sec
Acceleration: 32 ft/sec/sec
3 Seconds
Velocity: 96 ft/sec
Acceleration: 32 ft/sec/sec
4 Seconds
Velocity: 128 ft/sec
Acceleration: 32 ft/sec/sec
5 Seconds
Velocity: 160 ft/sec
Acceleration: 32 ft/sec/sec
6 Seconds
Velocity: 192 ft/sec
Acceleration: 32 ft/sec/sec
A projectile is any moving object upon which the only active force is gravity.
Gravity pulls all projectiles toward the center of the earth at the same rate.
ThetaFiring Angle (θ) is measured in degrees. It is the angle at which the projectile left the cannon.
Initial Velocity (Vi) is the angular speed of a projectile at the start of its flight.
iV
iV
128 ft/sec
96 ft/sec
64 ft/sec
32 ft/sec
0 ft/sec
0 Seconds
Initial Velocity (Vi)
1 Second
2 Seconds
3 Seconds
4 Seconds
128 ft/sec
96 ft/sec
64 ft/sec
32 ft/sec
0 ft/sec
8 Seconds
7 Seconds
6 Seconds
5 Seconds
4 Seconds
09
0 S
ec.
1 S
ec.
2 S
ec.
3 S
ec.
4 S
ec.
Constant Horizontal Velocity
0 S
ec.
1 S
ec.
2 S
ec.
3 S
ec.
4 S
ec.
Constant Horizontal Velocity
Gravitational Acceleration32 ft/sec2
g
ix
Vsin 2
iV
g
iV Initial Velocity
Gravitational Acceleration
x Horizontal Distance Traveled
Firing Angle
g
iV Initial Velocity
Gravitational Acceleration
x Horizontal Distance Traveled
Firing Angle
g
2iV sin 2
x
x
Angle Firing
Traveled Distance Horizontal
onAccelerati nalGravitatio
Velocity Initial
x
g
Vi
iV
g12i
x2 sin
V