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## Homework Statement

The start velocity of the ball is 3m/s upward direction. Ball reaches its highest point after 1.2seconds

No air or other friction like that

i need to find how far the ball has travelled after 0.4 seconds, and after 2.4 seconds

i cant get the right answers, says its supposed to be 1meter for 0.4 sec, and 3.6meter for 2.4 sec

## Homework Equations

ive tried to use v0*t + 1/2a*t2 where:

v0 = 3

t= 0.4 or 2.4

a= +/.- 2.5m/s^2

## The Attempt at a Solution

i cant get the right answers, says its supposed to be 1meter for 0.4 sec, and 3.6meter for 2.4 sec, and the equation i mentioned earlier did not work..