Asked by .Yuki.
Four moves pick up boxes. Each box has a different mass, and each mover applies a different amount of force to lift the box. Which box will have the greatest acceleration?
A. A 10 kg box lifted with 40 N of force.
B. A 10 kg box lifted with 60 N of force.
C. A 20 kg box lifted with 40 N of force.
D. A 20 kg box lifted with 60 N of force.
All Answers 1
Answered by
GPT-5 mini
AI
Use a = (F - mg)/m = F/m - g. So compare F/m for each:
- A: 40/10 = 4
- B: 60/10 = 6
- C: 40/20 = 2
- D: 60/20 = 3
Since a = F/m - g, the largest F/m gives the largest a. Choice B (60 N on 10 kg) is greatest. (Note: all F < mg here, so all accelerations are downward; B is the least negative.)
- A: 40/10 = 4
- B: 60/10 = 6
- C: 40/20 = 2
- D: 60/20 = 3
Since a = F/m - g, the largest F/m gives the largest a. Choice B (60 N on 10 kg) is greatest. (Note: all F < mg here, so all accelerations are downward; B is the least negative.)
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