Asked by John
2D Displacement:
Particle moving, V(naught) 6.5 m/s(i-hat), -2.5 m/s(j-hat) arrow above V(naught) pointing in positive x direction.
Also a= 6.5m/s^2 (i-hat), 1 m/s^2 (j-hat)
I have V(sub-x) of 65 & V(sub-y) of 6.5, both after 9 seconds
w/ initial point (4.5, 6.5). I need to know the displacement from the origin (0,0), also after 9 seconds.
The answer given is 327.169 m.
I'm not sure what formula or process they used to get there, I tried drawing my vectors "head to tail" but then I noticed that after 9 seconds the y-coordinate in the initial point minus v(sub-y) is equal to y=0 which would eliminate the y-component. Don't know where I went wrong, but that's why I'm here.
Particle moving, V(naught) 6.5 m/s(i-hat), -2.5 m/s(j-hat) arrow above V(naught) pointing in positive x direction.
Also a= 6.5m/s^2 (i-hat), 1 m/s^2 (j-hat)
I have V(sub-x) of 65 & V(sub-y) of 6.5, both after 9 seconds
w/ initial point (4.5, 6.5). I need to know the displacement from the origin (0,0), also after 9 seconds.
The answer given is 327.169 m.
I'm not sure what formula or process they used to get there, I tried drawing my vectors "head to tail" but then I noticed that after 9 seconds the y-coordinate in the initial point minus v(sub-y) is equal to y=0 which would eliminate the y-component. Don't know where I went wrong, but that's why I'm here.
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