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Homework Statement
A soccer ball is resting on a level football field is kicked, landing 20m away after 1.5 seconds. Neglecting the effects of spin and air resistance, Determine: The time when it was 2m above the ground
Homework Equations
Ux=13.333m
Uy=7.35m
t=?
(delta)y=2m
ay=-9.8ms-2
(delta)y=uyt + 0.5ayt2
The Attempt at a Solution
2=7.35t-4.9t2
t=5.35/4.9
EDIT: Upwards is taken to be +ve
~1.09
But that's not the answer in the book