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?
58.8 N
0 N
0.6 N
1.6 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 8 m/sec
^{2}
?
58.8 N
106.8 N
10.80 N
57.8 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 4 m/sec
^{2}
?
3.48 x 10
^{1}
N
3.38 x 10
^{1}
N
1.42 x 10
^{1}
N
5.88 x 10
^{1}
N
omit
Question 4
What is the normal force acting on a 6-kg mass that is being pulled up a 30º frictionless inclined plane at a constant velocity of 8 m/sec?
2.35 x 10
^{2}
N
5.88 x 10
^{1}
N
5.09 x 10
^{1}
N
2.94 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 8 m/sec by a rope having a tension of 35 newtons at an angle of 30º to the horizontal?
76.3 N
58.8 N
28.5 N
41.3 N
omit
Question 6
What is the normal force acting on a 6-kg mass which is being pushed at a constant velocity of 8 m/sec by a force of 35 newtons along a rigid handle that makes an angle of 30º to the horizontal?
41.3 N
28.5 N
76.3 N
89.1 N
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