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Nikolayevitc
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Two dimentional motion question
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The discussion revolves around a physics problem involving two-dimensional motion, specifically focusing on finding the velocity and acceleration of a particle from its position functions. Participants emphasize the importance of understanding that velocity is the derivative of position, while acceleration is the derivative of velocity. An image of the problem is provided for clarity. The thread highlights the need for a solid grasp of calculus concepts to solve the question effectively. Overall, the conversation aims to assist in refreshing knowledge of fundamental physics principles.
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)...