Aflat-screen tv weighs 147 newtons. the mass of the tv is kilograms.

Wherever the TV happens to be, its weight is

               (mass) · (acceleration of gravity in that place) .

There are small differences, but the acceleration of gravity anywhere on Earth is always close to 9.8 m/s².  So if the TV is anywhere on Earth, we can write

                                   147 N = (mass) · (9.8 m/s²)

Divide each side
by   9.8 m/s² :            Mass = (147 N) / (9.8 m/s²)

                                             =  (147/9.8) kg

                                             =    15 kg .

Fitness is the ability to perform only very light levels of physical activity.

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