Answer :
Part a
Just use v=d/t
d = vt
d = 7 x 1.5
For part b
Vf=Vi +at
Vf=0 + (9.8)(1.5)
d= ((Vi + Vf) /2) x t
d = ((0 + Vf) /2) x 1.5
In second equation, use Vf found in first equation
Just use v=d/t
d = vt
d = 7 x 1.5
For part b
Vf=Vi +at
Vf=0 + (9.8)(1.5)
d= ((Vi + Vf) /2) x t
d = ((0 + Vf) /2) x 1.5
In second equation, use Vf found in first equation