Question

a motorboat starting from rest on lake accelerate in straight at the speed of 3m/s for 9 second its acceleration is​

Answer 1

Answer:

Given that--:

The initial velocity of a motorboat, u = 0

Acceleration of motorboat, a=3.0ms-2

Time under consideration or time is taken t = 8.0s

Formula--:

We know the equation of motion.

Distance, s = ut + (1/2)at2 —————-(i)

Substituting the given and known values in the equation (i) we get,

s= 0 (8) + 1/2 (3) (8)2 

= 1/2 (3) (64)

= 3(32)

= 96

Therefore, the distance travel by motorboat = 96 m