Look at the velocity-time graph given.  During which interval or intervals is the train’s acceleration negative?   ii only   iii and iv   i only   i and ii

College Physics
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ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter1: Introduction: The Nature Of Science And Physics
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Problem 15PE: (a) Suppose that a person has an average heart rate of 72.0 beats/min. How many beats does he or she...
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Look at the velocity-time graph given. 

During which interval or intervals is the train’s acceleration negative?

 
  1. ii only

     
  2. iii and iv

     
  3. i only

     
  4. i and ii

     

    If Resultant Vector R has a magnitude of 400 Newtons and direction of 220 degrees, then equilibrant vector is located in?

     
    1. Quadrant 4

       
    2. Quadrant 2

       
    3. Quadrant 1

       
    4. quadrant 3
12
10
v (m/s)
8
10
20
30
40
t (s)
iii. 15-20 seconds
i. 0-5 seconds
ii. 5-15 seconds
iv. 20-40 seconds
Transcribed Image Text:12 10 v (m/s) 8 10 20 30 40 t (s) iii. 15-20 seconds i. 0-5 seconds ii. 5-15 seconds iv. 20-40 seconds
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