Hello!
Δv = 0.1 m/s
Use the equation F = m · a to solve for the acceleration:
5 = 15 · a
a = 1/3
The equation to solve for acceleration can be rewritten to solve for the change in velocity:
Δv / t = a
Δv = at
We are given the acceleration and time, therefore:
Δv = (1/3)(0.3)
Δv = 0.1 m/s