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?
0.2 N
4.9 N
0 N
19.6 N
omit
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}
?
35.6 N
19.6 N
25.8 N
3.60 N
omit
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}
?
1.78 x 10
^{1}
N
1.8 x 10
^{0}
N
1.16 x 10
^{1}
N
1.96 x 10
^{1}
N
omit
Question 4
What is the normal force acting on a 2-kg mass that is being pulled up a 41º frictionless inclined plane at a constant velocity of 8 m/sec?
1.29 x 10
^{1}
N
1.03 x 10
^{2}
N
1.48 x 10
^{1}
N
1.96 x 10
^{1}
N
omit
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 43 newtons at an angle of 41º to the horizontal?
-12.9 N
-8.6 N
19.6 N
47.8 N
omit
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 43 newtons along a rigid handle that makes an angle of 41º to the horizontal?
-8.6 N
-12.9 N
52.1 N
47.8 N
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