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16-10-2020
Physics

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A rock at rest has weight 138 N. What is the weight of the rock when it is accelerating upward at 12 m/s2?
A115 N
B.138N
C.63 n
D.304 N

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16-10-2020

Answer:

A, 115

Explanation:

138 / 12 = 11.5

force of gravity = 10n

11.5 * 10 = 115

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