Explanation: The weight is defined as the gravitational force acting on a certain body. It can be calculated as follows: F = m * g where: F is the weight of the body = 3920 newton m is the mass that we want to calculate g is the gravitational force = 9.8 m/s²
Substitute with the givens in the above equation to get the value of the mass as follows: 3920 = mass * 9..8 mass = 400 kg
