MCQOPTIONS
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| 1. |
What is the empirical formula for the tractive force required to overcome curve resistance? (W-the weight of the body, R radius of curvature) |
| A. | 710 W R |
| B. | 700 W R |
| C. | 720 W R |
| D. | 750 W R |
| Answer» C. 720 W R | |