MCQOPTIONS
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MCQOPTIONS
| 1. |
Given that the normal reaction is constant, the friction force is |
| A. | inversely proportional to the area of the contact of the given surfaces |
| B. | directly proportional to the area of the contact of the given surfaces |
| C. | independent of the area of the contact of the given surfaces |
| D. | directly proportional to the square of the area of the contact of the given surfaces |
| Answer» D. directly proportional to the square of the area of the contact of the given surfaces | |