5. Projectile Motion

Intro to Projectile Motion: Horizontal Launch

5. Projectile Motion

# Intro to Projectile Motion: Horizontal Launch - Video Tutorials & Practice Problems

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concept

### Introduction to Projectile Motion

Video duration:

4mPlay a video:

2

Problem

ProblemWhich of the following quantities are constant during projectile motion?

A

Vertical acceleration & vertical velocity

B

Angle (direction) of the velocity vector

C

Horizontal acceleration & vertical velocity

D

Vertical acceleration & horizontal velocity

3

concept

### Solving Horizontal Launch Problems

Video duration:

8mPlay a video:

4

Problem

ProblemA rock is thrown horizontally with a speed of 20 m/s from the edge of a high cliff. It lands 80 m from the cliff's base. How tall is the cliff?

A

78.4 m

B

19.6 m

C

122.5 m

D

24.5 m

5

example

### Clearing the Net

Video duration:

6mPlay a video:

6

example

### An Unfortunate Landing

Video duration:

8mPlay a video:

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PRACTICE PROBLEMS AND ACTIVITIES (15)

- A daring 510-N swimmer dives off a cliff with a running horizontal leap, as shown in Fig. E3.10. What must her...
- Crickets Chirpy and Milada jump from the top of a vertical cliff. Chirpy drops downward and reaches the ground...
- A physics book slides off a horizontal tabletop with a speed of 1.10 m/s. It strikes the floor in 0.480 s. Ign...
- A rifle is aimed horizontally at a target 50 m away. The bullet hits the target 2.0 cm below the aim point. (b...
- You are watching an archery tournament when you start wondering how fast an arrow is shot from the bow. Rememb...
- On the Apollo 14 mission to the moon, astronaut Alan Shepard hit a golf ball with a 6 iron. The free-fall acce...
- A cannonball is fired at 100 m/s from a barrel tilted upward at 25°. c. What is the angle after the cannonbal...
- A projectile's horizontal range over level ground is v₀² sin 2θ/g. At what launch angle or angles will the pro...
- A projectile is launched from ground level at angle θ and speed v₀ into a headwind that causes a constant hori...
- A projectile is launched from ground level at angle θ and speed v₀ into a headwind that causes a constant hori...
- The cannon in FIGURE CP4.83 fires a projectile at launch angle θ with respect to the slope, which is at angle ...
- (II) A stunt driver wants to make his car jump over 8 cars parked side by side below a horizontal ramp (Fig. 3...
- (II) At serve, a tennis player aims to hit the ball horizontally. What minimum speed is required for the ball ...
- If a baseball pitch leaves the pitcher's hand horizontally at a velocity of 130 km/h, by what % will the pull ...
- A hunter aims directly at a target (on the same level) 38.0 m away. (a) If the arrow leaves the bow at a speed...