Practice Problems
Uniformly Accelerated Motion
Directions:
On this worksheet you will practice solving problems by using the
five basic kinematics equations
for uniformly accelerated motion.
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Question 1
Scenario #1:
A car accelerates uniformly from rest to a final speed of 21 m/sec in 9 seconds. How far does it travel during this period of acceleration?
189 meters
47 meters
95 meters
378 meters
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Question 2
What acceleration did the car is
Question 1
experience?
2.33 m/sec
2
2.45 m/sec
2
10.50 m/sec
2
0.43 m/sec
2
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Question 3
Scenario #2:
A pickup truck moving at 35 m/sec must come to a stop in a distance of 196 meters to avoid hitting a boulder that has fallen onto the road. How much time does the driver have to avoid an accident?
2.8 seconds
19.6 seconds
11.2 seconds
17.5 seconds
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Question 4
What acceleration did the truck experience in
Question 2
?
-8.75 m/sec
2
-3.13 m/sec
2
-5.60 m/sec
2
-1.79 m/sec
2
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Question 5
Scenario #3:
A row boat, starting from rest, takes 9 seconds to travel 35 meters. If the boat maintains a uniform acceleration, what will be its instantaneous velocity at the end of this intial 9-second period?
3.00 m/sec
7.78 m/sec
3.89 m/sec
8.37 m/sec
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Question 6
At the point in the stream where the boat in
Question 5
is crossing, the stream is a total of 196 meters wide. If the boat continues maintaining the final velocity it achieves at the end of 9 seconds for the remainder of the trip, how much total time will it need to reach the opposite shore?
29.7 seconds
44.5 seconds
20.7 seconds
21.3 seconds
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Question 7
What acceleration did the row boat initially experience in
Question 5
?
0.28 m/sec
2
0.86 m/sec
2
1.26 m/sec
2
0.43 m/sec
2
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Question 8
Scenario #4:
A go-cart, accelerating down a hill at 2.25 m/sec
2
can travel 88 meters in 8.75 seconds. What was the cart's initial velocity at the top of the hill after a subtle, not so official, push-start?
0.23 m/sec
0.26 m/sec
1.15 m/sec
0.20 m/sec
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Question 9
What was the cart's final velocity when it reached the bottom of the hill?
10.1 m/sec
19.9 m/sec
14.1 m/sec
3.1 m/sec
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