Answer : 
Step-by-step explanation:
According to the question, we have 
Mass = 500 kg = 0.5 kg 
Acceleration = 5 m/s²
From Newton's second law of motion, 
- Force = mass × acceleration 
 
Plugging the values, 
- Force = 0.5 × 5 
 - Force = 2.5 N 
 
Hence the resultant force acting on the object is 2.5 Newtons