Name
Period
Date
Projectile Motion Worksheet 4
Projectile Motion with Horizontal Initial Velocity
In all the problems below, begin by identifying what you must find and then what is given in
the problem.
1. The movie "The Gods Must Be Crazy" begins with a pilot dropping a bottle out of an
airplane. A surprised native below, who thinks it is a message from the gods,
recovers it. Suppose the plane from which the bottle was dropped was flying at a
height of 500. m, and the bottle lands 400. m horizontally from the initial dropping point.
a. How long was the bottle in the air?
b. How fast was the plane flying when the
bottle was released?
2. Suppose that an airplane flying 60. m , at a height of 300. m, dropped a sack of flour.
s
a. How long was the sack in the air?
b. How far from the point of release would
the sack have traveled when it struck the
ground?
3. In many locations, old abandoned stone quarries have become filled with water once
excavating has been completed. While standing on a quarry wall, a boy tosses a piece
of granite into the water below. If he throws the granite horizontally with a velocity of
3.0 m , and it strikes the water 4.5 m away,
s
a. How long was the granite in the air? b. How high above the water is the wall?
Projectile Motion Worksheet 4
page 2
4. Tad the littering cad drops a cherry pit out the car window 1.0 m above the ground while
traveling down the road at 10. m .
s
a. How long will it take
b. How far, horizontally,
c. If the car continues to
the pit to hit the
from the initial dropping
travel at the same speed,
ground?
point will the pit hit the
where will the car be in
ground?
relation to the pit when it
lands? How do you know?
5. A girl runs at a speed of 3.9 m
a. How high was the
diving board?
off a high dive and hits the water 1.8 seconds later.
s
b. How far horizontally
c. How long would it have
was she from the board
taken her to hit the water if
when she hit the
she had simply stepped off
water?
the board; less time, more
time, or the same amount
of time?
6. A rock is thrown horizontally from a building at 15 m . It hits the ground 45 m from
s
the base of the building. How tall is this building?