Question

A 75-kg person stands on a weight scale in an elevator and pushes the button to go up. The elevator accelerates upward at 3 m/s2, then rises at a steady speed of 15 m/s, and finally decelerates at the top floor at a rate of 2 m/s2. Match the force values to their descriptions. Some values may be used more than once, and some may not be used at all.

1. person's weight during upward acceleration

2. scale reading during upward acceleration

3. scale reading during constant speed

4. scale reading during deceleration

5.strength of force applied to the scale from the person during deceleration

Answer 1

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