Question

A motorbike starting from rest on a lake accerlerates in a straight line at a constant rate of 3.0 m s-2 for 8.0 s. how far does the boat travel during this time

Answer 1

U= 0
V= U + at
= 0 + 8*3 = 24 m/s
S = ut + 1/2*a*t*t
= 0+36
= 36 m

Answer 2

Explanation:

Given, initial velocity of boat is: u=0

Acceleration is: a=3 ms^2

Time is: t=8 s

Using second equation of motion:

s=ut+  1/2at^2

s=0×8+  1/2×3×8^2  =96 m.