Question

Please answer this question. based on'Equations of motion'.Give a detailed explanation please.​

Answer 1

Explanation:

by formula for constant acceleration

$s = ut + (1 \div 2)at {}^{2}$

3 = u + a/2. ----------------(1)

8 = 2u + 4a/2 = 2u + 2a

8 = 2u + 4a/2 = 2u + 2a 4 = u + a. -------------------(2)

from (1) and (2)

1 = a/2

a = 2 m/s²

placing value of a in (1)

3 = u + 1

u = 2 m/s