Answer:
I don't have the full question but here
(a)
Set the height equal to gt2/2 and solve for t.
h = gt2/2
t = √(2h/g)
h = 1.5 m
g = 9.8 m/s2
Plug in the numbers and get t in seconds.
(b)
x = vxt
vx = 25 m/s
t = result from part (a)
Plug in the numbers and get x in meters.
