100 Level Department Of X-Ray Technicians exam questions and detailed answers. Download the answers in document format. Correct, detailed, and straightforward answers.
Questions:
(a) Define the following:
- [i] Measurement
- [ii] Fundamental unit
- [iii] Derived unit
- [iv] Dimension
(b) Derive the first, second, and third equations of motion for a body traveling along a straight line with uniform acceleration. Use u, v, a, and t for initial velocity, final velocity, acceleration, and time of motion, respectively.
(c) Suppose an object traveled along a straight path with the velocity as shown in the table below for the first 20 seconds:
| Velocity (m/s) | 0.00 | 5.00 | 10.00 | 15.00 | 20.00 | 20.00 | 20.00 | 20.00 | 15.00 | 10.00 | 0.00 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Time (s) | 0.00 | 2.00 | 4.00 | 6.00 | 8.00 | 10.00 | 12.00 | 14.00 | 16.00 | 18.00 | 20.00 |
(i) Draw the velocity-time graph to illustrate the motion.
(ii) Calculate Acceleration, Retardation, and Total Distance traveled by the object.
