Name: _________________________ Period: __________ Due Date: __________ A
AP Physics 1 Homework - Constant Acceleration
For questions 1-8, show work using the GUESS method.
1. A drag racer initially at rest accelerates forward at a constant rate of 6 m/s 2 for 5 seconds. How far has
the racer traveled at the end of this interval?
.
2. A test car initially at rest accelerates forward at a constant rate of 3 m/s 2. How fast does the car move
after traveling 600 meters?
.
3. A rocket is launched from rest directly upward in such a way as to have a constant acceleration of 4 m/s 2.
How much time does it take for the rocket to reach a height of 50 meters?
.
4. A high-performance car travels along a straight road with an initial speed of 20 m/s. The car accelerates
uniformly to a speed of 70 m/s during an interval of 2 seconds. What is the car's acceleration during this
interval?
.
5. A high-performance car travels along a straight road with an initial speed of 10 m/s. The car accelerates
uniformly to a speed of 50 m/s during an interval of 4 seconds. How far does the car travel during this
interval?
2
AP Physics 1 Homework - Constant Acceleration A
6. A toy car initially moves with a speed of 4 m/s. The toy travels 16 meters to accelerate to a speed of 12
m/s.
(a) What was the toy's acceleration (b) How long did the toy accelerate?
during this interval?
7.
The graph to the right shows the position of an
object as a function of time as the object
uniformly accelerates. Calculate the
acceleration of the object. Explain how you
used the graph to obtain given information
and how you chose a basic equation.
8.
An object travels along a straight line path
so that its position is given as a function of
time by the graph shown. What is the
average acceleration of the object during
the interval between 3 seconds and 7
seconds? Explain what you are doing
along with showing math.
2
AP Physics 1 Homework - Constant Acceleration A
9.
The graph of an object’s speed as a function of time is
shown.
For each part, give an answer and EXPLAIN how you
found that answer.
(a) What is the displacement of the object during the 2
seconds shown on the graph?
(b) What is the average velocity of the object during the 2 seconds shown on the graph?
(c) What is the acceleration of the object during the 2 seconds shown on the graph?
.
10.
Car X Car Y Car Z
Three cars X, Y, and Z travel on parallel lanes of the same straight, flat roadway. At time t = 0, all three
cars are along side each other and all three drivers begin to apply the brakes. The graphs above show the
velocities of the three cars as they come to rest after time t = 0.
(a) Rank the three cars based on the magnitude of their acceleration from highest to lowest. Between
each letter, put either the symbol > or the symbol = to indicate inequality or equality. Explain how
you arrived at your ranking.
(b) Rank the three cars based on the distance each one traveled while braking. Explain how you arrived
at your ranking.
3
AP Physics 1 Homework - Constant Acceleration A
11.
The graph shown represents the
motion of an object during a 4-second
interval. The object only moves along
a straight line. Note that the vertical
axis is not labeled. Consider also the
following motion diagrams.
(1)
(2)
(3)
(4)
(5)
(a) If the graph above is a position vs. time graph, which of the motion diagrams would represent the
same motion? State a number 1 through 5 and explain your reasoning.
(b) If the graph above is a velocity vs. time graph, which of the motion diagrams would represent the
same motion? State a number 1 through 5 and explain your reasoning.
(c) If the graph above is an acceleration vs. time graph, which of the motion diagrams would represent
the same motion? State a number 1 through 5 and explain your reasoning.
.
12. Points Given: (1 thru 5) ___/15 (6 thru 8) ___/18 (9 thru 10) ___/10 (11) ___/10
