- #1
silviamar21
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Homework Statement
Does an object at rest have inertia?
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An object at rest does possess inertia, which is its resistance to changes in its state of motion. According to Newton's first law of motion, an object will remain at rest unless acted upon by an external force. This means that inertia is not dependent on the object's motion but rather its tendency to maintain its current state. Inertia applies to both stationary and moving objects, emphasizing the fundamental principle of motion in physics. Therefore, an object at rest indeed has inertia.
The answer is (B) but I don't really understand why.
Based on formula of Young Modulus:
$$x=\frac{FL}{AE}$$
The second wire made of the same material so it means they have same Young Modulus. Larger extension means larger value of ##x## so to get larger value of ##x## we can increase ##F## and ##L## and decrease ##A##
I am not sure whether there is change in ##F## for first and second wire so I will just assume ##F## does not change. It leaves (B) and (C) as possible options so why is (C)...