Vertical Projectile motion in one dimension

Question 1

After a projectile is launched, it moves only under the influence of __________.

Answer 1

Gravity

Question 2

What is the value and direction of acceleration experienced by a projectile?

Answer 2

value = 9.8m/s^2
direction = always downwards

Question 3

What is the first thing you should do in solving vertical projectile motion problems?

Answer 3

Establish one direction (up or down) as positive and the other direction as negative

Question 4

What is the velocity of a projectile at its maximum height from launch position?

Answer 4

0 m/s

Question 5

What is time symmetry?

Answer 5

This refers to the fact that the time interval during the upward motion is equal to the time interval during the downward motion.

Question 6

In equations of motion, what do the following letters represent?
vf, vi, g, x and t

Answer 6

vf - final velocity at time t
vi - initial velocity at start
a - acceleration due to gravity
x - vertical displacement
t - time interval

Question 7

What are the three most important steps in solving vertical projectile motion problems?

Answer 7

Step 1: Establish one direction (up or down) as positive and the other direction as negative
Step 2: Identify what is required and what information is given
Step 3: Identify the appropriate equation to use to solve your problem.

Question 8

What function is the position-time graph of a projectile?

Answer 8

A quadratic function

Question 9

What function is the velocity-time graph of a projectile?

Answer 9

A straight line

Question 10

What function is the acceleration-time graph of a projectile?

Answer 10

A horizontal straight line