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?
1.4 N
68.6 N
0.7 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 8 m/sec
^{2}
?
124.6 N
65.8 N
12.60 N
68.6 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 m/sec
^{2}
?
6.86 x 10
^{1}
N
3.78 x 10
^{1}
N
4.06 x 10
^{1}
N
1.82 x 10
^{1}
N
omit
Question 4
What is the normal force acting on a 7-kg mass that is being pulled up a 43º frictionless inclined plane at a constant velocity of 8 m/sec?
6.86 x 10
^{1}
N
5.02 x 10
^{1}
N
4.68 x 10
^{1}
N
3.74 x 10
^{2}
N
omit
Question 5
What is the normal force acting on a 7-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 43º to the horizontal?
39.3 N
97.9 N
37.2 N
68.6 N
omit
Question 6
What is the normal force acting on a 7-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 43º to the horizontal?
97.9 N
100.0 N
39.3 N
37.2 N
PhysicsLAB
Copyright © 1997-2017
Catharine H. Colwell
All rights reserved.
Application Programmer
Mark Acton