3.
4.
Vectors and Projectiles
Projectile Motion
Read from Lesson 2 of the Vectors and Motion in Two-Dimensions chapter at The Physics Classroom:
MOP Connection:
1.
A baseball is dropped off a cliff and it accelerates to the
ground at a rate of -9.8 m/s2, down. Meanwhile a
cannonball is launched horizontally from a cannon with a
horizontal speed of 20 m/s.
0
2.
A scale is shown along the sides of the graphic at the right.
Use the scale to locate the position of the baseball and the
cannonball. Trace a line to indicate the trajectory of the
cannonball.
4120
40
60
280
Name:
http://www.physicsclassroom.com/Class/vectors/u312a.html
http://www.physicsclassroom.com/Class/vectors/u312b.html
http://www.physicsclassroom.com/Class/vectors/u312c.html
http://www.physicsclassroom.com/Class/vectors/u312d.html
http://www.physicsclassroom.com/Class/vectors/u312e.html
http://www.physicsclassroom.com/Class/vectors/u312f.html
Vectors and Projectiles: sublevels 7-10
+100
120
PA
Baseball
y(m)
t(s)
0
1
2
3
4
5
40 60
Cannonball
t(s) x(m) y(m)
80
0
20
40
60
80
0
20
Which of these two balls strike the ground first?
Compare the two diagrams - the vertical free-fall motion on the left and the two-dimensional free-
fall motion on the right. Describe the effect on an object's horizontal motion upon the object's
vertical motion.
100
100
-120