EP CONCEPTUAL PHYSICS-ONLINE ACCESS
9th Edition
ISBN: 9780133246810
Author: Hewitt
Publisher: SAVVAS L
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Textbook Question
Chapter 4, Problem 1A
How can you be both at rest and also moving about 107,000 km/h at the same time?
Expert Solution & Answer
To determine
To explain: The concept behind the person being at rest and at motion at the same time for the given speed.
Answer to Problem 1A
A person is moving relative to Sun while resting relative toEarth.
Explanation of Solution
Introduction:
Every object rest on Earth but it is continuously moving around the Sun. An object is said to be in motion, if its position relative to fixed point is changing.
Earth is moving around the Sun with a speed 10700 km/h. Earth takes 1 year to complete one rotation around the Sun. Suppose a man is resting on the Earth. But at the same time he is moving around the Sun. His relative speed with the Earth is zero but relative speed with respect to Sun will be 107000km/h.
Conclusion:
Therefore, person can be at rest as well as in motion at the same time.
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Chapter 4 Solutions
EP CONCEPTUAL PHYSICS-ONLINE ACCESS
Ch. 4 - How can you be both at rest and also moving about...Ch. 4 - You cover 10 meters in a time of 1 second. Is your...Ch. 4 - Does the speedometer of a car read instantaneous...Ch. 4 - Averagespeed=distance covered divided by travel...Ch. 4 - Which is a vector quantity, speed or velocity?...Ch. 4 - What two controls on a car cause a change in...Ch. 4 - What is the acceleration of a car moving along a...Ch. 4 - By how much does the speed of a vehicle moving in...Ch. 4 - Why does the unit of time enter twice in the unit...Ch. 4 - What is the meaning of freefall?
Ch. 4 - For a freely falling object dropped from rest,...Ch. 4 - For a freely falling object dropped from rest,...Ch. 4 - How far will a freely falling object fall from...Ch. 4 - How far will an object move in one second if its...Ch. 4 - How far will a freely falling object have fallen...Ch. 4 - What does the slope of the curve on a...Ch. 4 - What does the slope of the curve on a...Ch. 4 - Does air resistance increase or decrease the...Ch. 4 - What is the appropriate equation for how fast an...Ch. 4 - Jogging Jake runs along a train flatcar that moves...Ch. 4 - Below we see before and after snapshots of a cars...Ch. 4 - These are drawings of Same-size balls of different...Ch. 4 - A track is made of a piece of channel metal bent...Ch. 4 - A ball is released from rest at the left end of...Ch. 4 - In the speed versus time graphs, all times t are...Ch. 4 - Calculate your average walking speed when you step...Ch. 4 - Calculate the speed of a bowling ball that moves 8...Ch. 4 - Calculate your average speed if you run 50 meters...Ch. 4 - Calculate the distance (in km) that Charlie runs...Ch. 4 - Calculate the distance you will travel if you...Ch. 4 - Calculate the distance (in km) you will travel if...Ch. 4 - Calculate the acceleration of a car (in km/h/s)...Ch. 4 - Calculate the acceleration of a bus that goes from...Ch. 4 - Calculate the acceleration of a ball that starts...Ch. 4 - Calculate the instantaneous speed (in m/s) at the...Ch. 4 - Calculate the speed (in m/s) of a skateboarder who...Ch. 4 - Calculate the instantaneous speed of an apple 8...Ch. 4 - On a distant planet a freely-falling object has an...Ch. 4 - A sky diver steps from a high-flying helicopter....Ch. 4 - Calculate the vertical distance an Object dropped...Ch. 4 - An apple drops from a tree and hits the ground in...Ch. 4 - Light travels in a straight line at a constant...Ch. 4 - a. If a freely falling rock were equipped with a...Ch. 4 - Which has more acceleration when moving in a...Ch. 4 - Correct your friend who says, 'The dragster...Ch. 4 - What is the acceleration of a car that moves at a...Ch. 4 - Tiffany stands at the edge of a cliff and throws a...Ch. 4 - A ball is thrown straight up. What will be the...Ch. 4 - Two balls are released simultaneously from rest at...Ch. 4 - Refer to the tracks in the previous problem. a....Ch. 4 - A dragster going at 15 m/s north increases its...Ch. 4 - An apple drops from a tree and hits the ground in...Ch. 4 - On a distant planet a freely falling object has an...Ch. 4 - If you throw a ball straight upward at a speed of...Ch. 4 - Hanna tosses a ball straight up with enough speed...Ch. 4 - Kenny Klutz drops his physics book off his aunts...Ch. 4 - Calculate the hang time of an athlete who jumps a...Ch. 4 - By any method you choose, determine your average...Ch. 4 - You can compare your reaction time with that of a...Ch. 4 - Calculate your personal 'hang time,' the time your...
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