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Q. |
Force provided by breaking system of train if it is decelerating at rate of -3 m s -2 and having mass 10,000 kg is {{}} |
A. | -30,000 N |
B. | -40,000 N |
C. | -50,000 N |
D. | 30,000 N |
Answer» A. -30,000 N |
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