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Saturday, October 18, 2014

1-10E

1–10E A 150-lbm astronaut took his bathroom scale (a spring scale) and a beam scale (compares masses) to the moon where the local gravity is g 5.48 ft/s 2 . Determine how much he will weigh (a) on the spring scale and (b) on the beam scale. Answers: (a) 25.5 lbf; (b) 150 lbf
 1-10EAn astronaut took his scales with himto space. Itis to be determined how much he will weigh on
the spring and beamscales in space.
Analysis (a) A spring scale measures weight, which isthe localgravitationalforce applied on a body:

(b) A beamscale compares masses and thus is not affected by the variations in gravitational acceleration.
The beamscale will readwhat it reads onearth,
W=150lbf
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