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 5-kg mass that is at rest on a horizontal surface?
0.5 N
49.0 N
2.0 N
0 N
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Question 2
What is the normal force acting on a 5-kg mass that is sitting on the floor of an elevator which is accelerating upwards at a rate of 6 m/sec
2
?
79 N
39.8 N
19.00 N
49 N
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Question 3
What is the normal force acting on a 5-kg mass that is sitting on the floor of an elevator which is accelerating downwards at a rate of 3 m/sec
2
?
3.4 x 10
1
N
5.2 x 10
0
N
2.48 x 10
1
N
4.9 x 10
1
N
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Question 4
What is the normal force acting on a 5-kg mass that is being pulled up a 33º frictionless inclined plane at a constant velocity of 6 m/sec?
4.9 x 10
1
N
1.6 x 10
2
N
2.67 x 10
1
N
4.11 x 10
1
N
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Question 5
What is the normal force acting on a 5-kg mass which is being pulled at a constant velocity of 6 m/sec by a rope having a tension of 27 newtons at an angle of 33º to the horizontal?
26.4 N
49.0 N
34.3 N
63.7 N
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Question 6
What is the normal force acting on a 5-kg mass which is being pushed at a constant velocity of 6 m/sec by a force of 27 newtons along a rigid handle that makes an angle of 33º to the horizontal?
26.4 N
63.7 N
71.6 N
34.3 N
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