Exam 2
9 of 319 of 31 Questions
Question
Study the image of two people pushing on opposing sides of a dog house at the same time.
Two people pushing on a doghouse. Force vector arrows are marked 25 N upward and 25 N downward; 10 N to the left and 10 N to the right.
Modified by FlipSwitch.
vberla/Shutterstock
Compute the amount of force acting on the doghouse using the vector addition rule.
Responses
0 N, the doghouse remains at rest.
20 N, the doghouse remains at rest.
0 N, the doghouse starts moving in one direction and then slows to a stop.
70 N, the doghouse remains at rest.
The amount of force acting on the doghouse can be computed by using the vector addition rule. In this case, there are two forces acting on the doghouse - one pushing upwards with a force of 25 N and one pushing downwards with a force of 25 N.
Since these two forces are equal in magnitude but opposite in direction, they cancel each other out. Therefore, the net force acting on the doghouse is 0 N. As a result, the doghouse remains at rest.
So, the correct answer is: 0 N, the doghouse remains at rest.
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To compute the amount of force acting on the doghouse using the vector addition rule, we need to add the forces acting on the doghouse.
According to the image, there are two people pushing on opposing sides. One person exerts a force of 25 N upward, and the other person exerts a force of 25 N downward.
In addition, there is another person pushing on the left side with a force of 10 N, and another person pushing on the right side with a force of 10 N.
To calculate the net force, we add the forces in the vertical direction and the horizontal direction separately.
In the vertical direction, the upward force of 25 N cancels out the downward force of 25 N, resulting in a net force of 0 N.
In the horizontal direction, the force of 10 N to the left cancels out the force of 10 N to the right, also resulting in a net force of 0 N.
Therefore, the net force acting on the doghouse is 0 N.
The correct response is: 0 N, the doghouse remains at rest.