An object moving with uniform acceleration has a velocity of 12m/s in the +ve x-direction,when its x-coordinate 3cm.if its x-coordinate 2sec. later is -5cm ,what is the acceleration?

Answer 1

d=vi(t)+1/2 a t^2
-8=12*2+1/2 a (4)
solve for a

Answer 2

-16cm/s^2

Answer 3

i went physics qustion answer

Answer 4

a projectile is fired in such a way that its horizontal range is equal to four times its maximum height. what is the angle of projection?