The discussion centers on solving for the change in velocity in the Velocity Dilemma problem 005, following the successful resolution of problem 004, which yielded a change in velocity of 12.972. The user initially attempted to apply the kinematics equation x=(1/2)(2.35)(5.52)^2 + Vb(5.52) but received an incorrect result of Vb = 11.57559. It was clarified that the equation used represents the initial velocity, not the desired variable, indicating a misunderstanding of the problem's requirements.
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Garen said:
I have solved 004 and got 12.972 as the change in velocity. I am having a little difficulty solving for 005. Initially I thought I could use the x=(1/2)(2.35)(5.52)^2+Vb(5.52) kinematics equation, but for some reason it's not right. The answer I got with my attempt was Vb =11.57559. Am I not supposed to use kinematics in this situation? What am I doing wrong?