You are in an elevator standing on a scale. The scale reads 486N. You feel a change in the elevator's motion. You notice the scale now reads 495N. Calculate the acceleration of the elevator.

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Q: (please type answer fast).

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A: Image_1

Q: (a) (b)

A: from fig. (a) 2T = mg2 (92.4) =m (9.8)m = 184.89.8 =18.85 kg

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Q: (please type answer fast).

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Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!