Determine the weight of a person weighing 60 kg if he: A) is at rest; b) is in an elevator moving upwards with an acceleration of 0.2 m / s2?
These tasks: m (the mass of the person under consideration) = 60 kg; a (lift acceleration) = 0.2 m / s2; the elevator moves up.
Reference values: g (acceleration due to gravity) ≈ 9.8 m / s2.
A) Weight of a resting person: P = m * g = 60 * 9.8 = 588 N.
B) The weight of the person in question in a moving elevator: P = m * (g + a) = 60 * (9.8 + 0.2) = 600 N.
Answer: The weight of the person in question is a) 588 N; b) 600 N.
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