Describe and contrast inversion and eversion?
1 answer:
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<h2><u>How</u><u> </u><u>to</u><u> </u><u>solve</u><u>?</u></h2>
We know that, Velocity is the rate of displacement covered. Displacement is the shortest path between the Initial and Final point covered by the body. So,
- Velocity = Displacement / Time
And, when it comes to Average velocity, It is the total displacement by total time taken. So, By using this let's solve this question.....
<h2><u>Solution</u><u>:</u></h2>✏️ Refer to the attachment...
Let the body goes to point A that is 7 m East of the Initial point. Then it comes backward because West is opposite to East in perpendicular direction. It covers 1.5 m backwards in the same line to reach B which is the Final point.
So,
- Displacement = Final point - Initial point
⇛ Displacement = 7 m - 1.5 m
⇛ Displacement = 5.5 m
Total time taken,
⇛ 2 hours + 1 hour
⇛ 3 hours
Finding Average displacement,
⇛ Total displacement / Total time taken
⇛ 5.5 m / 3 hours
⇛ 1.83333.... hours
So, the Final answer is,
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Answer:
The negative work is done in the opposite direction of the movement.
Explanation:
When the force applied to the body acts contrary to the movement of the body, it is considered that a negative mechanical work is performed.
In the attached image, we can see how these forces acting over one body.
In the sketch we can see how the force is moving the block to the right, it means in the direction of the movement and the friction force is acting in the opposite direction of the movement, that is the reason that the work is negative.
