Practice Problems
Normal Forces
Directions:
On this worksheet you will be asked to calculate the normal force depending on a variety of situations.
omit
Question 1
What is the normal force acting on a 2-kg mass that is at rest on a horizontal surface?
19.6 N
0.2 N
4.9 N
0 N
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Question 2
What is the normal force acting on a 2-kg mass that is sitting on the floor of an elevator which is accelerating upwards at a rate of 8 m/sec
2
?
25.8 N
19.6 N
35.6 N
3.60 N
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Question 3
What is the normal force acting on a 2-kg mass that is sitting on the floor of an elevator which is accelerating downwards at a rate of 4 m/sec
2
?
1.16 x 10
1
N
1.78 x 10
1
N
1.8 x 10
0
N
1.96 x 10
1
N
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Question 4
What is the normal force acting on a 2-kg mass that is being pulled up a 33º frictionless inclined plane at a constant velocity of 8 m/sec?
1.96 x 10
1
N
1.07 x 10
1
N
8.54 x 10
1
N
1.64 x 10
1
N
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Question 5
What is the normal force acting on a 2-kg mass which is being pulled at a constant velocity of 8 m/sec by a rope having a tension of 28 newtons at an angle of 33º to the horizontal?
19.6 N
4.4 N
34.8 N
-3.9 N
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Question 6
What is the normal force acting on a 2-kg mass which is being pushed at a constant velocity of 8 m/sec by a force of 28 newtons along a rigid handle that makes an angle of 33º to the horizontal?
43.1 N
-3.9 N
34.8 N
4.4 N
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