Step-by-step explanation:
we use the formula for that 6s duration ....
S = ut + 1/2 at²
s = displacement
u = initial velocity
a = acceleration
t = time
so , S = (5 × 6) + (1/2 × 2 × 6 × 6 )
S = 30 + 36
S = 66m
and we can use this formula to find the final velocity.......
V = U + at
V = final velocity
a = acceleration
u = initial velocity
t = time
so , V = 5 + (2×6)
V = 5 + 12
V = 17m/s