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 4-kg mass that is at rest on a horizontal surface?
39.2 N
0 N
0.4 N
2.5 N
omit
Question 2
What is the normal force acting on a 4-kg mass that is sitting on the floor of an elevator which is accelerating upwards at a rate of 10 m/sec
^{2}
?
0.80 N
79.2 N
49.8 N
39.2 N
omit
Question 3
What is the normal force acting on a 4-kg mass that is sitting on the floor of an elevator which is accelerating downwards at a rate of 5 m/sec
^{2}
?
2.98 x 10
^{1}
N
1.02 x 10
^{1}
N
1.92 x 10
^{1}
N
3.92 x 10
^{1}
N
omit
Question 4
What is the normal force acting on a 4-kg mass that is being pulled up a 44º frictionless inclined plane at a constant velocity of 10 m/sec?
2.72 x 10
^{2}
N
2.82 x 10
^{1}
N
3.92 x 10
^{1}
N
2.72 x 10
^{1}
N
omit
Question 5
What is the normal force acting on a 4-kg mass which is being pulled at a constant velocity of 10 m/sec by a rope having a tension of 43 newtons at an angle of 44º to the horizontal?
9.3 N
39.2 N
8.3 N
69.1 N
omit
Question 6
What is the normal force acting on a 4-kg mass which is being pushed at a constant velocity of 10 m/sec by a force of 43 newtons along a rigid handle that makes an angle of 44º to the horizontal?
9.3 N
8.3 N
70.1 N
69.1 N
PhysicsLAB
Copyright © 1997-2018
Catharine H. Colwell
All rights reserved.
Application Programmer
Mark Acton