exam Flashcards
(14 cards)
What is projectile motion
The form of motion in which an object us thrown with an initial velocity at a given angle of projection and moves along a curved path called trajectory.
What is projectile motion?
The form of motion in which an object is thrown with an initial velocity at a given angle of projection and moves along a curved path called trajectory.
The trajectory is typically parabolic in shape.
What shape does the trajectory of a projectile take?
Parabola.
This means the motion forms an arch.
What are the two components of projectile motion?
Constant velocity along the horizontal axis and free fall along the vertical axis.
The horizontal and vertical motions are independent of each other.
What type of velocity does a projectile have along the horizontal direction?
Constant velocity.
This is because there are no forces acting upon it along the horizontal axis.
How does vertical velocity behave in projectile motion?
It varies since it is acted upon by gravity.
The vertical motion is affected by gravitational acceleration.
What is the initial vertical velocity of a projectile launched horizontally?
Zero.
The projectile accelerates downward due to gravitational force after launch.
What is the horizontal distance covered by a projectile called?
Horizontal displacement.
Its maximum value is referred to as the range (R).
What is the vertical displacement covered by a projectile called?
Height.
This refers to how high the projectile travels vertically.
Fill in the blank: The horizontal displacement can be obtained by using the basic definition of _______.
velocity.
This involves calculating how far the projectile travels horizontally over time.
In Example 1, what is the horizontal velocity of the cannonball?
180 m/s.
This is the speed at which the cannonball is fired horizontally.
In Example 1, what is the height from which the cannonball is fired?
100 m.
This height is crucial for calculating the time taken to reach the ground.
In Example 2, how far does the ball land from the edge of the cliff?
35 m.
This distance is determined by the initial horizontal velocity and the time of flight.
In Example 2, what is the height of the cliff?
22 m.
This height affects the time taken for the ball to fall.
