GRAVITY AND ACCELERATION (II) Name ihe distance covered by a freely falling body is calculated by the following formula, at2 Example 1: How far will an object fall in 5 seconds? d = Answer: d = 9.8 m/s) (5s)2 = 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: = V,-V, = 2 39.2 -0 = 2 (2) 19.6 m/s 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 velocity will the box in Problem 6 be traveling when it hits the ground? Answer: 8. What is the average velocity of the box in Problem 6? Answer:

GRAVITY AND ACCELERATION (II) Name ihe distance covered by a freely falling body is calculated by the following formula, at2 Example 1: How far will an object fall in 5 seconds? d = Answer: d = 9.8 m/s) (5s)2 = 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: = V,-V, = 2 39.2 -0 = 2 (2) 19.6 m/s 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 velocity will the box in Problem 6 be traveling when it hits the ground? Answer: 8. What is the average velocity of the box in Problem 6? Answer:

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

GRAVITY AND ACCELERATION (II)
Name
ihe distance covered by a freely falling body is calculated by the following formula,
d = at?
12
Example 1: How far will an object fall in 5 seconds?
Answer:
d = 9.8 m/s) (5s)2
= 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?
(2
Answer:
Va
= V,- V, =
39.2 - 0 =
19.6 m/s
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
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