Question

A 1000 kg boat starts at rest and accelerates to 10 m/s in 2 seconds. How fast does the boat accelerate?

5 points
20,000 m/s^2
5,000 m/s^2
50 m/s^2
100 m/s^2
200 m/s^2

Answer 1

`5 m/s^2`

Step-by-step explanation:

The acceleration of an object is given by

`a=(v-u)/(t)`

where

v is the final velocity

u is the initial velocity

t is the time it takes for the velocity to change from u to v

For the boat in the problem,

v = 10 m/s

u = 0

t = 2 s

Substituting, we find the acceleration

`a=(10-0)/(2)=5 m/s^2`