| 31. |
| Based on the graph to the right, the
spring constant is
A. 0.33 N/m
B. 33 N/m
C. 3.0 m/N
D. 0.030 m/N
Answer |
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| 32. |
Neglecting air
resistance, which angle of inclination gives the largest range shooting
projectiles when
starting and ending at the same altitude? Answer
|
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A. |
15o |
C. |
45o |
|
B. |
30o |
D. |
60o |
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| 33. |
| At 45o, the 5.00 kg box
starts to slide from a stationary position.
Calculate the force friction. Answer
A. 24.1 N
C. 37.5 N
B. 31.5 N
D. 49.0 N
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| 34. |
Which of the
following will hit the ground first assuming no air resistance? Answer
|
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A. |
Bullet fired
horizontally at 300. m/s from a 100. m cliff.
|
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B. |
Arrow fired
horizontally at 50.0 m/s from a 250. m cliff.
|
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C. |
Baseball thrown
horizontally at 40.0 m/s from a 200. m cliff.
|
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D. |
Soccer ball kicked
horizontally at 30.0 m/s from a 150. m cliff. |
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| 35. |
| Identical 5.0 kg blocks are released
from rest on the ramps to the right. Which will experience the
greatest acceleration?
Answer
|
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| 36. |
A pitcher in
baseball walks 25.0 m West turns and walks 15.0 m South. How far
must he throw a ball he hit his original position? Answer
|
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A. |
29.2 m |
C. |
36.7 m |
|
B. |
33.1 m |
D. |
40.0 m |
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| 37. |
A basketball leaves
the players hand at an inclination of 75.0o and 25.0
m/s. What is the vertical component of the velocity?
Answer
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A. |
6.47 m/s |
C. |
18.6 m/s |
|
B. |
6.70 m/s |
D. |
24.1 m/s |
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| 38. |
A 15.0 N force is
applied to a ball at 15.0o and a 30.0 N force is applied
at 75.0o. What is the equilibrant force? Answer
|
|
A. |
45.0N at 90o |
C. |
39.7 N at 55.9o |
|
B. |
45.0 N at 270o |
D. |
39.7 N at 235.9o |
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| 39. |
Which of the
following is the appropriate unit for the mathematical expression? Answer
|
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A. |
mass x distance
----------------------- and watt
time
|
C. |
mass x distance2
----------------------- and joule
time2 |
|
B. |
mass x distance2
----------------------- and watt
time |
D. |
mass x distance
----------------------- and joule
time3 |
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| 40. |
A spring has a
spring constant of 225 N/m. After being compressed 45.0 cm, it is
released to accelerate a 5.00 kg ball. What is the Kinetic Energy of
the ball? Answer
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A. |
22.8 J |
C. |
101 J |
|
B. |
45.6 J |
D. |
202 J |
