Answer:
42.857 kg
Step-by-step explanation:
Given that :
Weight of body = 420N
Recall : Weight (W) = mass(m) * acceleration due to gravity(g)
Thus ;
Mass, m = Weight, W / acceleration due to gravity
Acceleration due to gravity is a constant, g =, 9.8 m/s²
Mass = 420N / 9.8m/s²
Mass = 42.857142kg
