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frosja888 [35]
3 years ago
12

In this image, what must the students' muscles do to pull the rope? twitch and tighten relax and twitch tighten and contract con

tract and relax
Health
2 answers:
Zolol [24]3 years ago
8 0

Answer:

The answer is C

Explanation:

Because your muscle needs to be tightened to drag your opponent to your own side and contracting it is the method of your arm passing out force to be able to pull the rope.

il63 [147K]3 years ago
3 0
The correct answer is: tighten and contract
This is is the correct answer because muscle fibers need to first reach an optimal length and tension ratio or "tighten" in order for the muscle to perform work. After the muscle has tightened, it can then "contract" which leads to a decrease in the angle of the joint through force. If the muscle being used to pull the rope is the bicep on the arm, then the angle between the forearm and upper arm will decrease, causing the rope to be pulled.
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