Read the following to give the correct answer.
1.
| Assertion (A): | An object moving with constant speed is always in uniform motion. |
| Reason (R): | Uniform motion requires the object to move along a straight line. |
2.
| Assertion (A): | Motion is defined as the change in position of an object with respect to time. |
| Reason (R): | An object at rest does not change its position with respect to its surroundings. |