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Attachment 19101
the velocity-versus-time graph for a basketball player traveling up and down the court in a straight-line path. Find the net displacement of the player for the 10 s shown on the graph.
I am not too sure where to even start. Or even how someone achieves a velocity of -2m/s. Am i supposed to find his displacement on the X axis? if so, am i supposed to use this equation:
http://www.mathhelpforum.com/math-he...t-f131g2_r.jpgQuote:
Originally Posted by mode
Attachment 19101
the velocity-versus-time graph for a basketball player traveling up and down the court in a straight-line path. Find the net displacement of the player for the 10 s shown on the graph.
I am not too sure where to even start. Or even how someone achieves a velocity of -2m/s. Am i supposed to find his displacement on the X axis? if so, am i supposed to use this equation:
The equationis only valid if acceleration is constant. The given velocity graph clearly shows that acceleration is different over each lettered interval.
FYI, on a velocity vs. time graph, displacement is the area between the graph and the t-axis. Area above the t-axis is positive displacement, area below is negative displacement. Algebraically sum the positive and negative displacements to get the total displacement.
so i just sum up the velocity at each t interval?
one more time ...Quote:
Originally Posted by mode
on a velocity vs. time graph, displacement is the area between the graph and the t-axis. Area above the t-axis is positive displacement, area below is negative displacement. Algebraically sum the positive and negative displacements to get the total displacement.
