A person with a mass of 75 kg stands in an elevator on a bathroom scale (uses un

Question

A person with a mass of 75 kg stands in an elevator on a bathroom scale (uses units of Newtons).

A.) What is the scale reading as the elevator moves at a constant upward speed of1.5 m/s beetween floors?

B.) What is the scale reading as the elevator slows down when the elevator reaches the top floor? The elevator slows down from its speed of 1.5 m/s in just 0.6 s?

C.) What is the scale reading as the elevator begins to move downward going from rest to a speed of 1.5 m/s in 0.8 s?

D.) What is the scale reading as the elevator moves at a constant downward speed of 1.5 m/s between floors?

E.) What is the scale reading as the elevator slows down when the elevator reaches the ground floor? The elevator slows down from its speed of 1.5 m/s in just 0.6 s.

Explanation / Answer

A) 735 N B) A = 1.5/0.6 = 2.5 m/s^2 F = 922.5 N C) A = -1.5*0.8 = -1.875 m/s^2 F = 594.375 N D) 735 N E) A = 2.5 F = 922.5 N

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