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 7-kg mass that is at rest on a horizontal surface?
68.6 N
0.7 N
1.4 N
0 N
omit
Question 2
What is the normal force acting on a 7-kg mass that is sitting on the floor of an elevator which is accelerating upwards at a rate of 9 m/sec
^{2}
?
5.60 N
68.6 N
131.6 N
72.8 N
omit
Question 3
What is the normal force acting on a 7-kg mass that is sitting on the floor of an elevator which is accelerating downwards at a rate of 4.5 m/sec
^{2}
?
4.13 x 10
^{1}
N
6.86 x 10
^{1}
N
3.71 x 10
^{1}
N
2.17 x 10
^{1}
N
omit
Question 4
What is the normal force acting on a 7-kg mass that is being pulled up a 27º frictionless inclined plane at a constant velocity of 9 m/sec?
2.8 x 10
^{2}
N
3.11 x 10
^{1}
N
6.11 x 10
^{1}
N
6.86 x 10
^{1}
N
omit
Question 5
What is the normal force acting on a 7-kg mass which is being pulled at a constant velocity of 9 m/sec by a rope having a tension of 45 newtons at an angle of 27º to the horizontal?
48.2 N
68.6 N
89.0 N
28.5 N
omit
Question 6
What is the normal force acting on a 7-kg mass which is being pushed at a constant velocity of 9 m/sec by a force of 45 newtons along a rigid handle that makes an angle of 27º to the horizontal?
48.2 N
89.0 N
108.7 N
28.5 N
PhysicsLAB
Copyright © 1997-2023
Catharine H. Colwell
All rights reserved.
Application Programmer
Mark Acton