A kgf is the force required to accelerate a mass of 1 kgm at arate of 9.81 m/s 2

Question

A kgf is the force required to accelerate a mass of 1 kgm at arate of 9.81 m/s2. A) what is the conversion factor to convert from mass unit toforce unit in this system. give its dimensions, and its numericalvalue and units. B) calculate the weight ( in kgf) of a 180 kg man (i) on mars(ii) on earth. A kgf is the force required to accelerate a mass of 1 kgm at arate of 9.81 m/s2. A) what is the conversion factor to convert from mass unit toforce unit in this system. give its dimensions, and its numericalvalue and units. B) calculate the weight ( in kgf) of a 180 kg man (i) on mars(ii) on earth.

Explanation / Answer

   a) The convestion factorto  convert from mass unit to force unit in this systemis                1 kgf = (9.81 m/s2)( kgm) b) The weight of the man on mars is           W = mg'               =  (180 kg)(0.38)(9.8 m/s2)                The weight of the man on earth is            W =mg                  = (180 kg) (9.8 m/s2) Simplifying we get the answer.

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