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llach
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Homework Statement
A particle moving along a straight line with constant acceleration starts its motion at t = 0. The particle is observed to change the direction of motion at t = 4 s, and when t = 10 s it reaches the position of −2 m with a −2.4 m/s velocity measured from a chosen reference frame. Find the position of the particle when it changes its direction of motion.
I know the answer is 5.2 m but I don't understand how to get that at all because when I use the average acceleration it's wrong.