In which of the following scenarios is the object speeding up? Please select ALL that applies.  Asume that both v and a are in the x direction.  a. v = 20 m/s, a = -10 m/s^2 b. v = 5 m/s, a = 20 m/s^2 c. v = 0 m/s, a = -10 m/s^2 d. v = -30 m/s, a = 0 m/s^2  e. v = -15 m/s, a = -5 m/s^2 f. v = 0 m/s, a = 20 m/s^2

Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter6: Motion In Two Dimensions
Section6.3: Relative Velocity
Problem 27PP
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In which of the following scenarios is the object speeding up? Please select ALL that applies. 

Asume that both v and a are in the x direction. 

a. v = 20 m/s, a = -10 m/s^2

b. v = 5 m/s, a = 20 m/s^2

c. v = 0 m/s, a = -10 m/s^2

d. v = -30 m/s, a = 0 m/s^2 

e. v = -15 m/s, a = -5 m/s^2

f. v = 0 m/s, a = 20 m/s^2

 

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