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Attempt 2
A rope is used to drag a heavy block across a rough floor using three different methods. Assuming that the rope tension and
block displacement are the same in all three cases, rank the energy dissipated by friction in each case.
Most energy lost
m
Case 1
Case 2
Least energy lost
Answer Bank
Case 3
Case 3
Case 1
Case 2

Sagot :

michell96

The block or case with the highest energy loss is 2, while the one with the lowest energy loss is 3.

Friction occurs as one object moves over a surface or another object and this creates resistance. This means the object that is sliding loses energy or decreases its speed. Friction acts parallel to the surface, and this force opposes the force applied to an object for this to move.

Due to this, if the force is applied in a parallel way the friction will be relatively low because the force applied is directly acting over friction. However, if the force is not parallel as in cases 1 and 2, friction and energy loss increase.

Based on this, case 3 is the one with the lowest energy loss, while case 2 shows the highest energy loss this is because the movement is not parallel and the direction of the force applied will increase the contact between the surface and the block which increases friction.

Learn more in: https://brainly.com/question/24882156

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