Answer: 3.2 kilograms
=================================================
Work Shown:
- F = 8 newtons = force applied
- m = unknown mass in kilograms
- a = 2.5 m/s^2 = acceleration
Apply Newton's Second Law of Motion
F = m*a
8 = m*2.5
2.5m = 8
m = 8/2.5
m = 3.2
The mass is 3.2 kilograms