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Physics

10 8 6 4 2 0 -2 -4 -6 -8 -10 0 10 20 30 40 50 60 70 80 90 1

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter34: Frontiers Of Physics

Section: Chapter Questions

Problem 16CQ: Is the event horizon of a black hole the actual physical surface of the object?

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Question

An object moves in one dimension, and its velocity versus time is shown in the graph. Express your answers in m/s².

A. What is the average acceleration between the times 0 s and 20 s?

B. What is the average acceleration between the times 20 s and 50 s?

C. What is the average acceleration between the times 50 s and 70 s?

D. What is the average acceleration between the times 0 s and 100 s?

v(t) (m/s)
10
8
6
4
2
0
-2
-4
-6
-8
-10
Velocity vs. Time
0 10 20 30 40 50 60 70 80 90 100
Time (s)

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Step 1: Velocity vs time graph is given

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Step 2: Determining average acceleration between 0 to 20 and 20 to 50 second

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Step 3: Determining average acceleration between 50 to 70 sec

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