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- 1. Multiple Choice
Acceleration due to gravity is equal to...
4.91 m/s2
8.76 m/s2
9.81 m/s2
19.62 m/s2
- 2. Multiple Choice
When an object is thrown in the air, what is its velocity at the max height?
-9.81 m/s
0 m/s
9.81 m/s
10 m/s
- 3. Multiple Choice
If an object is thrown into the air with a velocity of +7.6 m/s what will its velocity be when it returns to the same height?
-9.81 m/s
-7.6 m/s
0 m/s
7.6 m/s
- 4. Multiple Choice
A construction worker accidentally drops a brick from a high scaffold. What is the velocity of the brick after 4.0 s? Assume that downward is negative.
+39 m/s
-39 m/s
+2.45 m/s
-2.45 m/s
- 5. Multiple Choice
A construction worker accidentally drops a brick from a high scaffold. If it is in the air for 4.0 s, how far did it fall?
78 m
44 m
39 m
19.6 m
- 6. Multiple Choice
A tennis ball is thrown straight up with an initial speed of 22.5 m/s. How high does it rise? Assume downward is negative.
1.15 m
4.59 m
26 m
103 m
- 7. Multiple Choice
A tennis ball is thrown straight up with an initial speed of 22.5 m/s. How long does it take to reach its max height? Assume downward is negative.
0.44 s
2.3 s
221 s
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