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WorksheetsProjectile Motion
Total questions: 9
Worksheet time: 7mins
A cannon fires a shell at a fixed angle above the horizontal. Which of the following quantities is NOT CONSTANT throughout the shell’s flight? (Ignore air resistance.)
acceleration
vertical component of velocity
horizontal component of velocity
A cannonball is launched horizontally from the top of a 78.4-meter high cliff. How much time will it take for the ball to reach the ground?
1 s
2 s
3 s
4 s
A hockey puck slides off the edge of a table with an initial velocity of 20 m/s. The height of the table above the ground is 2.0 m. What is the vertical acceleration of the puck just before it touches the ground?
-19.6 m/s^2
-20 m/s^2
-9.8 m/s^2
-4.9 m/s^2
A monkey throws a banana horizontally from the top of a tree. The banana hits the ground 4 seconds later and lands 80 meters from the base of the tree. How fast did the monkey throw the banana?
320 m/s
10.47 m/s
20 m/s
0.05 m/s
A stand holds two white balls. At the same instant one ball is dropped straight down, while the other ball is shot straight out horizontally. Which ball will hit the ground first? (Neglect air resistance.)
the shot ball
the dropped ball
Both will hit the ground at the same time.
Consider a plane moving with a constant speed at an elevated height above the Earth's surface. In the course of its flight, the plane drops a package from its luggage compartment. Where will it land with respect to the plane?
in front of the plane
directly below the plane
slightly behind the plane
behind the plane
The only force acting on an object in projectile motion is ___.
normal force
air resistance
gravity
When a projectile is rising up, what happens to its acceleration?
constant
decreases
increases
it becomes zero
Which angle produces the greatest range?
30 degrees
45 degrees
60 degrees
75 degrees
