Answer:
Unbalanced force = F = 45 N
Step-by-step explanation:
According to the Newton's second law of motion Acceleration of an object is directly proportional to the net force or unbalanced force acting on it. Its mean that When there is some unbalanced force acting on an object, there must be an acceleration.
Given data:
Mass = m = 50 kg
Acceleration = a = 0.9 m/s²
Unbalanced force = F = ?
According to the Newton's second law of motion
F = ma
F = (50)(0.9)
F = 45 N