Question

plz answer the question​

Answer 1

hey mate I am answering your question please tell me how was my answer
u= 25m/s
a=a
s= 57m
t= 5s
we know that
$s = ut + \frac{1}{2} {at}^{2}$
57m = 25 × 5 + 1/2 × a × 5^2
57= 125 + 25a/2
-68 = 25a/2
therefore
a= -68 × 2/25
a= -5.44m/s2