Continued Projectile Motion
Practice
11/11/2013
Seed Question
Six rocks with different masses are thrown straight
upward from the same height at the initial velocities
shown next to each diagram. Rank the rocks on the
basis of their maximum heights from the greatest to
the least height. Support your answer with complete
sentences.
Number 1
A cannon ball is shot upward at an angle.
Describe the magnitude and direction of the
forces acting on the ball and its acceleration
horizontally and vertically as it is moving
upward, at its highest point, and as it travels
downward.
Number 2
Six
identical
toy the
trucks
are rolling
the tables
shown
Now
compare
distance
the along
toy truck
will travel
in the diagrams. The speed of the trucks are
in below
diagram
CB versus F.
C.Explain
Explainyour
yourreasoning
reasoningin
inat
at
shown above each diagram and the height of the tables
least 2 complete sentences.
are shown to the left of the diagram. Rank the following
trucks based on how long the trucks are in the air.
5 m/s
20 m/s
A
20 m/s
B
80 cm
40 cm
20 m/s
40 cm
8 m/s
C
5 m/s
and 80
cm
80 cm
8 m/s
and 80
cm
8 m/s
E
D
60 cm
8 m/s
and 60
cm
40 cm
10 m/s
10 m/s
40 cm
F
40 cm
8 m/s
8 m/s
40 cm
Number 3
Cathy Droll rolls a bowling ball off the roof of his
school. If she rolls the ball at 19.7 m/s, it hits
the ground 46.2 m horizontally from the edge of
the roof. How high is the roof? How fast was
the ball going when it hit the ground?
Number 4
Jack B. Nimble shoots a rock with his slingshot
horizontally at a wall 15.0 m away. It hits the
wall in 40.s.
– How fast was the rock traveling when it left the
slingshot?
– How far had it fallen when it hit the wall?
Number 5
A ball is projected horizontally from the top of a
92.0-meter high cliff with an initial speed of 19.8
m/s. Determine:
(a) the horizontal displacement
(b) the final speed the instant prior to
hitting the ground.
Number 6
Determine the launch speed of a horizontally
launched projectile that lands 26.3 meters from
the base of a 19.3-meter high cliff.
Number 7
A soccer ball is kicked horizontally at 15.8 m/s
off the top of a field house and lands 33.9 metes
from the base of the field house. Determine the
height of the field house.
Number 8
A pool ball leaves a 0.60-meter high table with
an initial horizontal velocity of 2.4 m/s. Predict
the time required for the pool ball to fall to the
ground and the horizontal distance between the
table's edge and the ball's landing location.
Number 9
A soccer ball is kicked horizontally off a 22.0meter high hill and lands a distance of 35.0
meters from the edge of the hill. Determine the
initial horizontal velocity of the soccer ball.
Number 10
Anita Break rolls a golf ball off of a 76 cm tall
table with an initial velocity of 1.67 m/s.
Determine the following:
a) How long will it take the ball to reach
the ground?
b) How far from the table will the ball
strike the ground?
C) What fast will the ball be going vertically
just before it hits the ground? What
about horizontally?