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FORMULA F=mgF-force (N), m-mass(kg), g-gravitational field strength (N/kg)    1.    what is the force of a hallow block with a mass of 4.5 kg?    2.    what is the mass of an object that has a force of gravity of 167 N?    3.    what is the gravitation field strength in the moon if the force of gravity of a spacecraft with a mass of 250 kg on the moon is 408 N?

Answer»

F = mg; g = 10 N/kg

(1) F = 4.5 x 10 = 45 N

(2) 167 = m x 10

m = \(\frac{ 167}{10}\) = 16.7 kg

(3) 408 = 250 g

g = \(\frac{408}{250}\) 

= 1.62 N/kg



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