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 N
4.9 N
19.6 N
0.2 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 9 m/sec
^{2}
?
27.8 N
19.6 N
37.6 N
1.60 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 4.5 m/sec
^{2}
?
8 x 10
^{-1}
N
1.96 x 10
^{1}
N
1.06 x 10
^{1}
N
1.88 x 10
^{1}
N
omit
Question 4
What is the normal force acting on a 2-kg mass that is being pulled up a 28º frictionless inclined plane at a constant velocity of 9 m/sec?
1.96 x 10
^{1}
N
9.2 x 10
^{0}
N
1.73 x 10
^{1}
N
8.28 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 9 m/sec by a rope having a tension of 34 newtons at an angle of 28º to the horizontal?
35.6 N
3.6 N
-10.4 N
19.6 N
omit
Question 6
What is the normal force acting on a 2-kg mass which is being pushed at a constant velocity of 9 m/sec by a force of 34 newtons along a rigid handle that makes an angle of 28º to the horizontal?
49.6 N
35.6 N
3.6 N
-10.4 N
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