Solution Found!
(a) Calculate the work done by gravity as a 5.2-kg object
Chapter 8, Problem 5P(choose chapter or problem)
(a) Calculate the work done by gravity as a 5.2-kg object is moved from A to B in Figure 8–18 along paths 1 and 2. (b) How do your results depend on the mass of the block? Specifically, if
you increase the mass, does the work done by gravity increase, decrease, or stay the same?
Questions & Answers
QUESTION:
(a) Calculate the work done by gravity as a 5.2-kg object is moved from A to B in Figure 8–18 along paths 1 and 2. (b) How do your results depend on the mass of the block? Specifically, if
you increase the mass, does the work done by gravity increase, decrease, or stay the same?
ANSWER:
Step 1 of 4
a)
The mass of the object is: .
While moving from A to B, the gravitational force and the displacement are perpendicular to each other.
As we know that, work done is the dot product of force and displacement vector, this will be zero while moving through the horizontal line.
Because the cosine of is zero which arises while calculating the dot product or the work done.