Question

a motor boat starting from rest on a lake accelerates in a straight line at a constant rate of 3.0 M per second square from 8.0 second for 8.0 seconds how far does the boat travel during this time

Answer 1

you mean you want to know about the distance travelled by the boat during its next 8 seconds after 8 seconds? Then the initial velocity is not zero....
Initial velocity= 24
acceleration=3
time= 8 seconds
Formula- S=ut+ 1/2 at^2
you get the distance= 288 metre

Thanks..

Answer 2

┏─━─━─━─━∞◆∞━─━─━─━─┓ ✭✮ӇЄƦЄ ƖƧ ƳƠƲƦ ƛƝƧƜЄƦ✮✭ ┗─━─━─━─━∞◆∞━─━─━─━─┛

➧ u ➾ 0 m/s
➧ a ➾ 30 m/s²
➧ t ➾ 8 sec

❱S ➾ ut + ½ at²

S ➾ 0 × 8 + ½ × 3 × (8)²
S ➾ ½ × 3 × 64
  ➾ 96 m ...✔

_________               Thanks...✊