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Applying Newtons Laws
Applying Newtons Laws
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Review quiz for AP Physics chapter 5 Applying Newtons Laws
Flashcards
15 cards
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Questions
15
Answers
1
What are T
1
and T
2 ,
the magnitudes of the tension forces in the first two ropes?
T1 = 50 N, T2 = 87 N
T1 = 87 N/m, T2 = 50 N/m
T1= 0 N, T2 = 137 N
T1 = 87 N, T2 = 50 N
2
What if the horizontal force of a 10 kg ice block being pulled horizontally at 2.0 m/s
2
?
40 N
20 N
21 N
0 N
3
A women has a mass of 55.0 kg. What is weight on earth?
55.0 N
5.612 N
539 N
539 lbs
4
What is the acceleration of this rope?
1.2 m/s2
0.6 m/s2
1.56 m/s2
2.45 m/s2
5
A cart rolls down an inclined plane with constant speed. Which arrow shows f
k
?
B
D
C
A
6
A women has a mass of 55.0 kg. What is her weight on the moon, where g=1.62 m/s
2
?
89.1 kg
89.1 N
55.0 N
55.0 kg
7
An astronaut's weight on earth is 800 N. What is his weight on mars? g=3.76 m/s
2
310 N
3008 N
212.766 N
800 N
8
A box resting on a floor is 20 kg. The μ of between the box and floor is 0.25. What if the f
s
?
50 N
200 N
0 N
85 N
9
A 20 kg speaker is suspended 2 m below the ceiling. Find tension of the cables.
113 N
55 N
110 N/M
55 N/M
10
A box weighing 46 N rests on an incline that makes an angle of 25° with the horizontal. What is the normal force?
19 N
26 N
21 N
42 N
11
The diagram above shows a box being pulled up the ramp. Which letter represents normal force?
D
A
C
B
12
A 10.-newton block is sliding down a 30-degree incline at a constant speed. What is the force of friction?
5 N
98 N
10 N
4.9 N
13
What is the net force on the 60 kg mass?
245 N
147 N
588.6 N
981 N
14
An elevator accelerates up at 2.0 m/s
2
. The passenger has a mass of 85 kg. Calculate force that would show on a scale.
1003 N
20 N
41 N
21 N/M
15
How much force would you need to lift a 100kg mass with one pulley?
981 N
736 N
491 N
245 N
