Name: __________________________________
P Review
Projectile Quest Review Sheet – Physics A
Date: ___________
Period: _________
1) List your kinematic equations used in projectile motion. Which are used for X direction and which for Y direction?
2) An arrow is launched horizontally off a cliff. What happens to the horizontal velocity as it falls?
What objects interact with the arrow horizontally? How would this be different if the arrow is launched at an angle?
3) An arrow is launched horizontally off a cliff. What happens to the vertical velocity as it falls? What object interacts with the arrow vertically? How would this be different if the arrow is launched at an angle?
4) What happens to the horizontal displacement of a projectile launched at an angle as it is in the air?
5) What happens to the vertical displacement of a projectile launched at an angle as it is in the air?
6) What is the angle that will provide maximum range for your projectile?
7) What is the angle that will provide maximum height for your projectile?
Problem Solving
Sketch, Table of Knowns, Equations, Solutions
8) A penny is launched horizontally off of the empire state building. It lands 5 meters away from the base of the building and takes 3.7 seconds to fall. Determine the initial velocity of the penny and the height of the building.
9) A package is dropped out of an airplane travelling horizontally at a steady 200 m/s. a.
How far does the package travel before it hits the ground if the airplane is 1000 m above the ground? b.
Will the package land in front of the plane, behind the plane or below the plane? Explain your answer. c.
Determine the total velocity of the package right before it hits the ground.
Fill in the table below for the following parameters of a projectile.
Velocity
(m/s) angle (°) Vx (m/s) Vyi (m/s) t total (s) Δy max (height) (m) Δx (range) (m)
20
20
0
15
38
20 70
5
18. A water balloon is thrown from one tree house at an angle of 30
from the horizontal to another tree house 20 m away. a.
Determine the initial speed of the water balloon when launched. b.
How high does the water balloon go?
19. Fill in everything you know about the projectile at each second in time, velocity and acceleration: v i
= 33.54 m/s
θ = 63.4
°
250