Question

a motor boat starting from rest on acceleration its in a straight line at a constant rate of 3.0 m s - square for 8.0 seconds how far does the boat travel during this time

Answer 1

$\textbf{ Hello Mate! }$

Here, u ( initial velocity ) = 0

a ( acceleration ) = 3 m/s^2

t ( time ) = 8 s

s = ut + 1 /2 ( at^2 )

= (0)(8) + 1 / 2 (3)(8)^2

= 0 + 1 / 2 × 3 × 8 × 8

= 3 × 4 × 8 = 96 m

$\boxed{ Answer : 96 m }$

Have great future ahead!

$\textbf{ Happy Independence Day }$

जय हिन्द!

Answer 2

We know that s = ut + 1/2at²
According to question, u = 0 [As it was in rest]; a = 3ms⁻² ; t = 8s
s = 0 x 8 + 1/2 x 3 x 8 x 8
s = 3 x 4 x 8
s = 96m

Hope that helps !!