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Klane
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Homework Equations
The Attempt at a Solution
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Convert Problems | Learn How to Solve Them
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The discussion focuses on solving a physics problem related to kinetic energy (KE). The given kinetic energy is 2260 N*m and the mass is 80 kg. Participants are encouraged to use the equation KE = 1/2mv^2 to find the unknown velocity (v). The conversation emphasizes that the solution is within reach, highlighting the importance of applying the correct formula. Overall, the thread provides guidance on tackling kinetic energy problems effectively.
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)...
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