5. Projectile Motion

Intro to Projectile Motion: Horizontal Launch

5. Projectile Motion

Intro to Projectile Motion: Horizontal Launch

Guided videos.

Learn with Patrick

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Guided course

04:44

Introduction to Projectile Motion

Solving Horizontal Launch Problems

An Unfortunate Landing

Additional 1 creators.

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Anderson Video - Throw Baseball off a Building

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How to Solve Horizontally Launched Projectile Motion Problems

Two Dimensional Motion (4 of 4) Horizontal Projection, Worked Example

Two Dimensional Motion (3 of 4) Horizontal Projection, An Explanation

Two Dimensional Motion (1 of 4) An Explanation

Projectile Motion Introduction

Jennifer Cash

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Practice this topic

Multiple Choice

Which of the following quantities are constant during projectile motion?

A 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?

Jim pushes a penny off a

0.86 m

tall table. Assume the penny is moving horizontally as it leaves the table at 5 m/s. How long is the penny in the air? Ignore air resistance.

439

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Multiple Choice

Bob throws a ball from his second story window to his friend Steve who is on the ground below. Assume that Bob throws the ball horizontally at

10 m / s

, and Steve will catch the ball at a point

4.5 m

below Bob. How far from the base of the building should Steve stand in order to catch the ball?

A daring 510-N swimmer dives off a cliff with a running horizontal leap, as shown in Fig. E3.10. What must her minimum speed be just as she leaves the top of the cliff so that she will miss the ledge at the bottom, which is 1.75 m wide and 9.00 m below the top of the cliff?

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Textbook Question

Crickets Chirpy and Milada jump from the top of a vertical cliff. Chirpy drops downward and reaches the ground in 2.70 s, while Milada jumps horizontally with an initial speed of 95.0 cm/s. How far from the base of the cliff will Milada hit the ground? Ignore air resistance.

1967

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Textbook Question

A physics book slides off a horizontal tabletop with a speed of 1.10 m/s. It strikes the floor in 0.480 s. Ignore air resistance. Find (a) the height of the tabletop above the floor;

A rifle is aimed horizontally at a target 50 m away. The bullet hits the target 2.0 cm below the aim point. (b) What was the bullet's speed as it left the barrel?

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Textbook Question

You are watching an archery tournament when you start wondering how fast an arrow is shot from the bow. Remembering your physics, you ask one of the archers to shoot an arrow parallel to the ground. You find the arrow stuck in the ground 60 m away, making a 30° angle with the ground. How fast was the arrow shot?

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Textbook Question

On the Apollo 14 mission to the moon, astronaut Alan Shepard hit a golf ball with a 6 iron. The free-fall acceleration on the moon is 1/6 of its value on earth. Suppose he hit the ball with a speed of 25 m/s at an angle 30 degrees above the horizontal. (b) For how much more time was the ball in flight?

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Textbook Question

A cannonball is fired at 100 m/s from a barrel tilted upward at 25°. c. What is the angle after the cannonball travels 500 m?

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Textbook Question

A projectile's horizontal range over level ground is v₀² sin 2θ/g. At what launch angle or angles will the projectile land at half of its maximum possible range?

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Textbook Question

A projectile is launched from ground level at angle θ and speed v₀ into a headwind that causes a constant horizontal acceleration of magnitude a opposite the direction of motion. a. Find an expression in terms of a and g for the launch angle that gives maximum range.

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Textbook Question

A projectile is launched from ground level at angle θ and speed v₀ into a headwind that causes a constant horizontal acceleration of magnitude a opposite the direction of motion. b. What is the angle for maximum range if a is 10% of g?

The cannon in FIGURE CP4.83 fires a projectile at launch angle θ with respect to the slope, which is at angle Φ. Find the launch angle that maximizes d. Hint: Choosing the proper coordinate system is essential. There are two options.

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Textbook Question

(II) A stunt driver wants to make his car jump over 8 cars parked side by side below a horizontal ramp (Fig. 3–46).

(a) With what minimum speed must he drive off the horizontal ramp? The vertical height of the ramp is 1.5 m above the car roofs and the horizontal distance he must clear is 22 m.

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Textbook Question

(II) At serve, a tennis player aims to hit the ball horizontally. What minimum speed is required for the ball to clear the 0.90-m-high net about 15.0 m from the server if the ball is 'launched' from a height of 2.30 m? Where will the ball land if it just clears the net (and will it be 'good' in the sense that it lands within 7.0 m of the net)? How long will it be in the air? See Fig. 3–50.

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Textbook Question

If a baseball pitch leaves the pitcher's hand horizontally at a velocity of 130 km/h, by what % will the pull of gravity change the magnitude of the velocity when the ball reaches the batter, 18 m away? For this estimate, ignore air resistance and spin on the ball.

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Textbook Question

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 of 21.3 m/s, by how much will it miss the target?

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Showing 19 of 19 practice