We have to calculate the distance covered by the boat in given time interval. Using 2nd equation of motion
where,
v is the final velocity
a is the acceleration
u is the initial velocity
t is the time taken
s is the distance covered
Substitute the value we get
:⟹ s = 0×8 + 1/2×3 × 8²
:⟹ s = 0 + 1/2 × 3 × 64
:⟹ s = 3/2 × 64
:⟹ s = 3 × 32
:⟹ s = 96 m
Hence, the distance covered by the steam boat is 96 metres.