 Physics
30 August, 00:58

# You weigh 100 pounds, your friend weighs 200 pounds, and you are in an arm wrestling contest with each other. Neither person is winning, but each of you is struggling to push the others forearm over to the tabletop. Which of Newton's laws applies to this scenario and why?

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1. 30 August, 01:48
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Newton's laws of motion

Explanation:

Newton's laws of motion are applied here.

Second Law

The force being exterted on an object is the product of its acceleration and mass

F = ma

Here, both person have different masses and none of them can defeat each other. So, this means both people are applying the same force. Hence, the acceleration is higher for the lighter person.

First Law

An object stays in the same state (rest or motion) unless some external force is applied.

Here, as the forces are same the system is conserved some external force is required to push the hand towards one direction.

Third law

When a force is applied to an object, the object will have a reaction which is equal and opposite in nature.

Both people are applying the same force which is causing an equal an opposite reaction cancelling each other. Hence, they are stuck