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A rope of negligible mass runs from a hand to a hanging load. What can be said about the tension along it?
AIt is largest at the hand and smallest at the load
BIt is largest at the load and smallest at the hand
CIt is the same everywhere between hand and load
DIt is zero at the midpoint of the rope's length
Answer & Solution
Correct answer: C. It is the same everywhere between hand and load
1. The rope pulls with equal force but in opposite directions on the hand and on the load.
2. Neglecting the weight of the rope itself, nothing changes the pull along its length.
3. The tension anywhere in the rope between the hand and the mass is therefore equal.
4. Once the tension is known at one point, it is known at every point along the rope.
_Source: OpenStax College Physics (CC BY 4.0), Ch 4 "Dynamics: Force and Newton's Laws of Motion", section 4.5 Normal, Tension, and Other Examples of Forces_
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