For the velocity-time graph shown, which interval had the greatest magnitude of the acceleration?
Options
A
0-1 s and 7-8 s
B
1-3 s
C
3-5 s
D
After the 8th second
Answer & Analysis
Answer
A
Analysis
To find the interval with the greatest magnitude
of acceleration, we need to calculate the acceleration for each interval using
the formula , where is the
change in velocity and is the change in time.
Analysis of each interval:
0 - 1 s:
Initial velocity
Final velocity
1 - 3 s:
Velocity is constant at v = 8 m/s, so
and
3 - 5 s:
Initial velocity
Final velocity
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