# PHYS 2211 Module 4.3

## Projectile Motion

4.3 Projectile Motion

### Learning Objectives

By the end of this section, you will be able to:

• Use one-dimensional motion in perpendicular directions to analyze projectile motion.
• Calculate the range, time of flight, and maximum height of a projectile that is launched and impacts a flat, horizontal surface.
• Find the time of flight and impact velocity of a projectile that lands at a different height from that of launch.
• Calculate the trajectory of a projectile.

Practice!

Discuss!

Consider how you would answer these questions. Then bring this to class for a group discussion.

In a carnival booth, you can win a stuffed giraffe if you toss a quarter into a small dish. The dish is on a shelf above the point where the quarter leaves your hand and is a horizontal distance of 2.1 m from this point. If you toss the coin with a velocity of 6.4 m/s at an angle of 60° above the horizontal, the coin will land in the dish. Ignore air resistance.

(a) What is the height of the shelf above the point where the quarter leaves your hand?

(b) What is the vertical component of the velocity of the quarter just before it lands in the dish?