QUESTION 7You launch a projectile at an initial speed of 31.0 m/s from the ground. After 3.10 seconds of flight, the projectile lands on the ground. At what angle above the horizontal was the projectile launched? 23.5 degrees 29.4 degrees 47.0 degrees 22.6 degrees QUESTION 8A projectile is fired from the ground, reaches a maximum height of 67.8 m and lands a distance of 65.7 m away from the launch point. What was the projectile s launch velocity? 37.5 m/s, 76.4 degrees above horizontal 36.5 m/s, 38.2 degrees above horizontal 8.8 m/s, 53.5 degrees above horizontal 67.5 m/s, 26.8 degrees above horizontaQUESTION 9You launch a projectile toward a tall building, from a position on the ground 38.7 m away from the base of the building. The projectile s initial velocity is 53.2 m/s at an angle of 57.3 degrees above the horizontal. At what height above the ground does the projectile strike the building? 126.5 m 101.2 m 26.7 m 51.4 m

Name: QUESTION 7You launch a projectile at an initial speed of 31.0 m/s from
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Description: QUESTION 7You launch a projectile at an initial speed of 31.0 m/s from the ground. After 3.10 seconds of flight, the projectile lands on the ground. At what angle above the horizontal was the projectile launched? 23.5 degrees 29.4 degrees 47.0 deg

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Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter3: Motion In Two Dimensions

Section3.4: Analysis Model: Particle In Uniform Circular Motion

Problem 3.4QQ: Which of the following correctly describes the centripetal acceleration vector for a particle moving...

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QUESTION 7

You launch a projectile at an initial speed of 31.0 m/s from the ground. After 3.10 seconds of flight, the projectile lands on the ground. At what angle above the horizontal was the projectile launched?

		23.5 degrees
		29.4 degrees
		47.0 degrees
		22.6 degrees

QUESTION 8

A projectile is fired from the ground, reaches a maximum height of 67.8 m and lands a distance of 65.7 m away from the launch point. What was the projectile s launch velocity?

		37.5 m/s, 76.4 degrees above horizontal
		36.5 m/s, 38.2 degrees above horizontal
		8.8 m/s, 53.5 degrees above horizontal
		67.5 m/s, 26.8 degrees above horizonta

QUESTION 9

You launch a projectile toward a tall building, from a position on the ground 38.7 m away from the base of the building. The projectile s initial velocity is 53.2 m/s at an angle of 57.3 degrees above the horizontal. At what height above the ground does the projectile strike the building?

		126.5 m
		101.2 m
		26.7 m
		51.4 m

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