For a certain interval of time, an object is acted on by a constant non zero for

Question

For a certain interval of time, an object is acted on by a constant non zero force, which of the following statements is true for this interval of time? (Select all that apply.) the object is at rest. The object's velocity changes. The object's velocity can only increase. The object is accelerating. The object is moving with constant velocity. You work at a garden store for the summer. You lift a bag of fertilizer with a force of 135 N, and It moves upward with an acceleration of 0.813 m/s^2. What is the mass of the fertilizer bag? How much does the fertilizer bag weigh?

Explanation / Answer

13 ) F - m g = m a

135 = m (a + g)

m = 135 / (9.8 + 0.813)

m = 12.72 kg

b) Weight = 12.72 * 9.8 = 125 N

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