A man weighs 0.80 kN on Earth. What is his mass in kilograms?

M = W/g = (800 N)/(9.8m/s^2)= 81.6 kg

Thank you. I tried to figure it out after posting this and did my best guess and by the looks of what you put I got it right. Thanks so much!

To find the mass of the man, we can use the equation:

Weight = mass x gravity

Given that the weight of the man on Earth is 0.80 kN, we need to convert it to Newtons (N) before proceeding.

1 kilonewton (kN) = 1000 Newtons (N)

So, 0.80 kN = 0.80 x 1000 N = 800 N

Now we can rearrange the equation and solve for mass:

mass = weight / gravity

The acceleration due to gravity on Earth is approximately 9.8 m/s^2.

mass = 800 N / 9.8 m/s^2

mass ≈ 81.6 kg

Therefore, the man's mass is approximately 81.6 kilograms.

To find the man's mass in kilograms, we can use the equation that relates weight, mass, and gravitational acceleration:

Weight = mass x gravitational acceleration

The weight is given as 0.80 kN (kilonewtons), and the gravitational acceleration on Earth is approximately 9.8 m/s².

Converting the weight to newtons:

1 kN = 1000 N

So, 0.80 kN = 0.80 x 1000 N = 800 N

Now, we can rearrange the equation to solve for mass:

mass = weight / gravitational acceleration

mass = 800 N / 9.8 m/s² ≈ 81.63 kg

Therefore, the man's mass is approximately 81.63 kilograms.