The weight of an object can be calculated using the formula:
Weight (W) = Mass (m) × Gravitational acceleration (g)
On the surface of the Earth, the gravitational acceleration (g) is approximately 9.81 m/s².
Given the mass (m) of the object is 25 kg, we can substitute the values into the formula:
W = 25 kg × 9.81 m/s²
Calculating this gives:
W = 245.25 N
Therefore, the weight of an object with a mass of 25 kg on the surface of the Earth is approximately 245.25 newtons.