Name:__________________________
vy f  vy 0  at
1
y  v y 0t  at 2
2
vy f 2  vy 02  2a(y)
Honors Physics - Projectile Motion Review
Remember to ignore air resistance for all problems. Gravity is always -9.8 m/s2.
1. A bowling ball and a ping-pong ball are dropped from the same height at the same time. Which will hit
the ground first?
2. Bowling ball A rolls off a counter. At the same time, bowling ball B is dropped from the same height
as the counter. Which will hit the ground first?
3. As an object free-falls, the distance that it falls every one second:
a. Increases
b. Decreases
c. Stays constant
d. None of the above
4. When a projectile is thrown straight upward gets to the exact top of its path, the
a.
velocity is zero and its acceleration is zero.
b.
velocity is about 9.8 m/s2 and its acceleration is zero.
c.
velocity is zero and its acceleration is about 9.8 m/s2.
d.
velocity is about 9.8 m/s2 and its acceleration is about 9.8 m/s2.
5. Two golf balls roll off the edge of a table at the same time. Ball A has a velocity of 4 m/s and Ball B
has a velocity of 7 m/s. Which hits the ground first?
6. Range refers to the distance a projectile travels:
a. vertically
b. horizontally
c. downward
d. upward
7. The horizontal velocity of a projectile always remains __________________.
8. A baseball is thrown up and to the right. Describe the changes to its vertical velocity as it rises and
falls.
9. What is the vertical speed of a projectile when it reaches the top of its flight?
Horizontal Motion Problems
10. A marble rolls off of a table 1.2 m high. The marble was traveling with a velocity of 8 m/s. Determine
the range (Δx) of the marble as it falls to the floor
11. Suppose a stuntman in a movie jumps off a 20 meter tall building with Vx = 8 m/s. He lands 6.4
meters (horizontally) away on a shorter building. How tall is this shorter building? (A diagram may help)
Angled Projectiles
12. A baseball player hits a pop fly into the air at an angle of 40o from the horizontal with an initial
velocity of 50 m/s. (Please solve without using the quadratic form in your calculator. Use your equations)
a)
Find Vx
b)
Find the time of flight
c)
Find ΔX
d)
Find the max height
b) Find Vy
13.
You launch your marble launcher from a height of 0.24 meters above the ground on to a target on
top of your lab table which is 0.65 meters above the ground. If your marble launcher had an angle
of 42° and the speed of the marble was 8.5 m/s, determine the horizontal distance from the
launcher to the target. (A picture may help).