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.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

GRAVITY AND ACCELERATION (II)
Name
he distancecovered by a freely falling body is calculated by the following formula,
d =
at?
Example 1: How far will an object fall in 5 seconds?
Answer:
d = 9.8 m/s?) (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:
= V,- v, = 39.2-0 =
19.6 m/s
2d
Solve the following problems.
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 traveling 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.

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