Question

Help please :pensive:

A boat is initially sailing South at 8 meters per second. After 4 seconds, it is sailing North at 8 meters per second. What was the boat's acceleration?

Question 9 options:

0 ms2

32 ms

64 m


4 ms2

Answer 1

0m/s²

Step-by-step explanation:

Given parameters:

Initial velocity of the boat = 8m/s

Final velocity = 8m/s

Time taken = 4s

Unknown:

Acceleration of the boat = ?

Solution:

Acceleration is the rate of change of velocity with time.

It is mathematically expressed as;

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

A is the acceleration

v is the final velocity

u is the initial velocity

t is the time taken

Insert the parameters and solve;

A =
`(8-8)/(4)` = 0m/s²