
(a)
The velocity of the car after each second.
(a)

Answer to Problem 18E
The velocities after 1s, 2s, 3s, 4s and 5s are
Explanation of Solution
Given info: The car accelerates at
Write the formula for average acceleration.
Here,
a is the average acceleration
t is the time
Re-arrange the equation to get
For
Substitute 0 m/s for
For
Substitute 0 m/s for
For
Substitute 0 m/s for
For
Substitute 0 m/s for
For
Substitute 0 m/s for
The velocity time graph is given below.
Figure (1)
Conclusion:
Therefore, the velocities after 1s, 2s, 3s, 4s and 5s are
(b)
The distance travelled after each second.
(b)

Answer to Problem 18E
The distances after 1s, 2s, 3s, 4s and 5s are
Explanation of Solution
Given info: Acceleration is
Write the formula to calculate the distance.
Here,
d is the distance
For
Substitute 0 m/s for
For
Substitute 0 m/s for
For
Substitute 0 m/s for
For
Substitute 0 m/s for
For
Substitute 0 m/s for
The distance time graph is,
Figure(2)
Conclusion:
Therefore, the distances after 1s, 2s, 3s, 4s and 5s are
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Chapter 2 Solutions
The Physics of Everyday Phenomena
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