Connect with knowledgeable individuals and get your questions answered on IDNLearn.com. Discover the information you need quickly and easily with our reliable and thorough Q&A platform.
Sagot :
To determine the work done when carrying a book weighing 2.0 newtons at a constant velocity over a horizontal distance of 26 meters, we need to consider the definition of work in physics.
Work is calculated using the formula:
[tex]\[ \text{Work} = \text{Force} \times \text{Distance} \times \cos(\theta) \][/tex]
Here, [tex]\(\theta\)[/tex] is the angle between the force applied and the direction of motion.
When carrying a book horizontally at constant velocity:
1. The weight of the book acts vertically downward due to gravity.
2. The movement is horizontal.
3. The angle [tex]\(\theta\)[/tex] between the direction of the weight (force due to gravity) and the direction of the motion (horizontal) is 90 degrees.
The cosine of 90 degrees ([tex]\(\cos(90^\circ)\)[/tex]) is 0.
Substituting into the formula, we get:
[tex]\[ \text{Work} = \text{Force} \times \text{Distance} \times \cos(90^\circ) \][/tex]
[tex]\[ \text{Work} = 2.0 \, \text{N} \times 26 \, \text{m} \times 0 \][/tex]
[tex]\[ \text{Work} = 0 \, \text{J} \][/tex]
Therefore, the work done is:
[tex]\[ 0.0 \, \text{J} \][/tex]
Among the given options, the correct answer is:
[tex]\[ \boxed{0.0 \, \text{J}} \][/tex]
Work is calculated using the formula:
[tex]\[ \text{Work} = \text{Force} \times \text{Distance} \times \cos(\theta) \][/tex]
Here, [tex]\(\theta\)[/tex] is the angle between the force applied and the direction of motion.
When carrying a book horizontally at constant velocity:
1. The weight of the book acts vertically downward due to gravity.
2. The movement is horizontal.
3. The angle [tex]\(\theta\)[/tex] between the direction of the weight (force due to gravity) and the direction of the motion (horizontal) is 90 degrees.
The cosine of 90 degrees ([tex]\(\cos(90^\circ)\)[/tex]) is 0.
Substituting into the formula, we get:
[tex]\[ \text{Work} = \text{Force} \times \text{Distance} \times \cos(90^\circ) \][/tex]
[tex]\[ \text{Work} = 2.0 \, \text{N} \times 26 \, \text{m} \times 0 \][/tex]
[tex]\[ \text{Work} = 0 \, \text{J} \][/tex]
Therefore, the work done is:
[tex]\[ 0.0 \, \text{J} \][/tex]
Among the given options, the correct answer is:
[tex]\[ \boxed{0.0 \, \text{J}} \][/tex]
We value your participation in this forum. Keep exploring, asking questions, and sharing your insights with the community. Together, we can find the best solutions. IDNLearn.com is your reliable source for answers. We appreciate your visit and look forward to assisting you again soon.