Negative time and positive time

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SUMMARY

The discussion focuses on determining the times at which a particle passes through the origin, specifically when its displacement, represented by the equation x = 4.0 - 6.0t², equals zero. By setting the equation to zero, the solution involves rearranging to find t² and subsequently taking the square root, yielding the times t = ±√(number). This method provides both positive and negative time solutions for the particle's motion.

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kellyab8
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how do i find at what negative time and positive time does the particle pass through the origin?
 
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kellyab8 said:
how do i find at what negative time and positive time does the particle pass through the origin?

At the origin x=0 and t=0. It seems you want to find when x=0, ( I assume x=displacement)

So just put 4.0-6.0t2=0 , then make t2 the subject and take the square root of that number. You're answer will then be t=±√(number)
 

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