Science; a=vf-vi/t what is the weight of a 980kg object on earth

The weight of gravity on earth is calculated by multiplying the mass (in kg) by 9.81 (the acceleration due to gravity on earth). So in your case, it would be 980x9.81 = 9613.8. The answer is in newtons (N)

The formula is Fg=MxA (where A is the acceleration)

Weight = (M) x (Gravity)

On or near the surface of Earth, the acceleration of Gravity is about

9.8 meters per second-squared.

Weight = (980) x (9.8) = 9,604 kg-m/second-squared = 9,604 newtons

That's about 2,161 pounds.