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Introductory Physics Homework Help
Finding Final Velocity or Setting it Equal to 0(Kinematics)
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[QUOTE="TSny, post: 5861460, member: 229090"] Yes. Except that I think it's better to say that you used a positive value for a[SUB]y[/SUB]. As I said, different people adopt different conventions concerning the sign of the symbol g. But a[SUB]y[/SUB] would definitely be positive for [I]everybody[/I] when downward is considered the positive direction and when the acceleration is due to gravity. Yes, if you now take the positive direction as upward, a[SUB]y[/SUB] would be a negative number since the direction of acceleration is downward. I would express this as a[SUB]y[/SUB] = -g where g is a positive number as explained in my previous post. But, there are people who would express this as a[SUB]y[/SUB] = g where g is a negative number. Either way, a[SUB]y[/SUB] is negative and that's what matters when you take upward as positive. [/QUOTE]
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Finding Final Velocity or Setting it Equal to 0(Kinematics)
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