Practice Problems
Net F = ma
Directions:
On this worksheet, positive horizontal directions are towards the right and positive vertical directions are upwards.
omit
Question 1
What is the net force acting on a 6-kg mass if it is accelerating at a rate of 5 m/sec
2
?
3 x 10
1
nts
8.33 x 10
-1
nts
1.1 x 10
1
nts
0 nts
omit
Question 2
What is the magnitude of the frictional force present if a 6-kg mass being pulled by a horizontal force of 8 newtons towards the right experiences an acceleration of -1.67 m/sec
2
?
1.8 x 10
1
nts
3.59 x 10
0
nts
1 x 10
1
nts
7.98 x 10
-1
nts
omit
Question 3
A 6-kg mass experiences two vertical forces: 34 newtons pulling upward and 58.8 newtons pulling downward. What acceleration does the 6-kg mass undergo?
-18.8 m/sec
2
-4.1 m/sec
2
15.5 m/sec
2
24.8 m/sec
2
omit
Question 4
A 6-kg mass is being pulled towards the right with a rope that has a tension of 56 newtons at an angle of 44 degrees to the x-axis. If the surface is frictionless, what acceleration will the mass develop?
0.2 m/sec
2
9.3 m/sec
2
6.5 m/sec
2
6.7 m/sec
2
omit
Question 5
A 16-gram bullet travelling at 50 m/sec is fired into a tree. If the bullet is brought to a stop in a distance of 44 centimeters, what average resistive force did the tree exert upon it?
-8 x 10
-1
nts
-1.82 x 10
0
nts
-4.55 x 10
2
nts
-4.55 x 10
1
nts
Copyright © 1997-2019
Catharine H. Colwell
All rights reserved.
Application Programmer
Mark Acton