Date post: | 15-Nov-2014 |
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Business |
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PROJECTILE MOTION
What is projectile motion?
What are the two (2) cases of projectile motion? How do they differ from each other?
Guide Questions
What factors affect the motion
of a projectile? How do these factors affect a projectile?
Is a projectile a free falling body? Explain.
Guide Questions
Projectile motion – a combination of
vertical and horizontal motions that are completely independent of each other
Projectile – an object or body thrown with an initial velocity and whose motion is influenced by the pull of gravity
Important Terms
Trajectory – the curved path of a
projectile; it is principally determined by two types of motion: vertical and horizontal motions
Range (dx) – the horizontal displacement of a projectile
Important Terms
Height (dy) – the vertical
displacement of a projectile
Important Terms
Projectile I: Body Launched Horizontally (θ= 0°)
Cases
Projectile II: Body Launched at a Certain Angle
(90°>θ> 0°)
Cases
Initial Velocity
What affects a projectile?
Projection Angle
What affects a projectile?
What affects a projectile?
What affects a projectile?
Projectile Motion vs. Free Fall
Projectile Motion vs. Free Fall
Examples
Examples
What is projectile motion?
What are the two (2) cases of projectile motion? How do they differ from each other?
Guide Questions
What factors affect the motion
of a projectile? How do these factors affect a projectile?
Is a projectile a free falling body? Explain.
Guide Questions
A little girl throws her jackstone ball
horizontally out of the window with a velocity of 30 m/s. If the window is 3 m above the level ground, how far will the ball travel before it hits the ground?
Given: ; Find:
Sample Problem 1
Sample Problem 1
Solution:a. Vertical motion
b. Horizontal motion 0.78 s)
A golf ball was hit and projected at an angle
of 60° with the horizontal. If the initial velocity of the ball was 50 m/s, calculate the (a) time the golf ball was in the air;
(b) horizontal distance the ball traveled; and (c) maximum height the ball reached. Given: θ = 60°; Find: tT; dx; dy
Sample Problem 2
Sample Problem 2
Solution:a. Upward vertical motion at maximum height
Sample Problem 2
b. Horizontal motion
c. Vertical motion at max. height
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