<h2>Option C is the correct answer.</h2>
Explanation:
We have equation of motion v = u + at
Initial velocity, u = 18 m/s to east
Final velocity, v = 19 m/s to east
Acceleration, a = ?
Time, t = 5 s
Substituting
v = u + at
19 = 18 + a x 5
1 = 5a
a = 0.2 m/s²
Since the velocity direction is towards east, direction of acceleration is also towards east.
So acceleration is 0.2 m/s² towards east.
Option C is the correct answer.