GRAVITY AND ACCELERATION (II) Name ihe distance covered by a freely falling body is calculated by the following formula, at? Example 1: How far will an object fall in 5 seconds? Answer: d = 9.8 m/s²) (5s)? = 122.5 meters where d =distance a = acceleration t= time Example 2: What is the average velocity of a ball that attains a velocity of 39.2 m/s after 4 seconds? Answer: Va 39.2 -0 = 19.6 m/s %3D %3D Solve the following problems. 11 How far will a rubber ball fall in 10 seconds? Answer: 2 How far will a rubber ball fall in 20 seconds? Answer: 3. How long will it take an object dropped from a window to fall a distance of 78.4 meters? Answer: 4 Calculate the final velocity of the ball in Problem 1. Answer: 5. What is the average velocity of the ball in Problem 1? Answer: 6. An airplane is traveling at an altitude of 31,360 meters. A box of supplies is dropped from its cargo hold. How long will it take to reach the ground? Answer: 7 At what yelocity will the box in Problem 6 be travelling when it hits the ground? Answer: 8. What is the average velocity of the box in Problem 6? Answer: Physical Science IFB767 21 Cinstructional Fair, Inc.

GRAVITY AND ACCELERATION (II) Name ihe distance covered by a freely falling body is calculated by the following formula, at? Example 1: How far will an object fall in 5 seconds? Answer: d = 9.8 m/s²) (5s)? = 122.5 meters where d =distance a = acceleration t= time Example 2: What is the average velocity of a ball that attains a velocity of 39.2 m/s after 4 seconds? Answer: Va 39.2 -0 = 19.6 m/s %3D %3D Solve the following problems. 11 How far will a rubber ball fall in 10 seconds? Answer: 2 How far will a rubber ball fall in 20 seconds? Answer: 3. How long will it take an object dropped from a window to fall a distance of 78.4 meters? Answer: 4 Calculate the final velocity of the ball in Problem 1. Answer: 5. What is the average velocity of the ball in Problem 1? Answer: 6. An airplane is traveling at an altitude of 31,360 meters. A box of supplies is dropped from its cargo hold. How long will it take to reach the ground? Answer: 7 At what yelocity will the box in Problem 6 be travelling when it hits the ground? Answer: 8. What is the average velocity of the box in Problem 6? Answer: Physical Science IFB767 21 Cinstructional Fair, Inc.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter5: Newton's Laws Of Motion

Section5.4: Inertial Mass

Problem 5.5CE

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