Vector Expression of x & y as Function of Time: Unit Vectors i & j

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SUMMARY

The discussion focuses on expressing the position vector in terms of unit vectors i and j for the equations x = (12 m/s)t and y = (2.55 m/s)t - (4.9 m/s²)t². The position vector can be represented as r(t) = (12 m/s)t i + [(2.55 m/s)t - (4.9 m/s²)t²] j. This formulation clearly delineates the horizontal and vertical components of motion as functions of time, utilizing standard vector notation in physics.

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silent bob
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how would i write x= (12 m/s)t , y= (2.55 m/s)t-(4.9 m/s^2)t^2 as a function of time using the unit vectors i and j?
 
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silent bob said:
how would i write x= (12 m/s)t , y= (2.55 m/s)t-(4.9 m/s^2)t^2 as a function of time using the unit vectors i and j?
Hint: The position is x i + y j
 

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