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 6-kg mass that is at rest on a horizontal surface?
0 N
58.8 N
1.6 N
0.6 N
omit
Question 2
What is the normal force acting on a 6-kg mass that is sitting on the floor of an elevator which is accelerating upwards at a rate of 10 m/sec
^{2}
?
118.8 N
1.20 N
58.8 N
69.8 N
omit
Question 3
What is the normal force acting on a 6-kg mass that is sitting on the floor of an elevator which is accelerating downwards at a rate of 5 m/sec
^{2}
?
2.02 x 10
^{1}
N
2.88 x 10
^{1}
N
5.88 x 10
^{1}
N
3.98 x 10
^{1}
N
omit
Question 4
What is the normal force acting on a 6-kg mass that is being pulled up a 26º frictionless inclined plane at a constant velocity of 10 m/sec?
2.58 x 10
^{1}
N
2.58 x 10
^{2}
N
5.88 x 10
^{1}
N
5.28 x 10
^{1}
N
omit
Question 5
What is the normal force acting on a 6-kg mass which is being pulled at a constant velocity of 10 m/sec by a rope having a tension of 42 newtons at an angle of 26º to the horizontal?
77.2 N
21.1 N
40.4 N
58.8 N
omit
Question 6
What is the normal force acting on a 6-kg mass which is being pushed at a constant velocity of 10 m/sec by a force of 42 newtons along a rigid handle that makes an angle of 26º to the horizontal?
96.5 N
77.2 N
21.1 N
40.4 N
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