Use the Galilean transformations to solve the following examples.
a. a A student standing by a two-lane road sees a truck travelling at 12 ms−1 . A car is travelling at 18 ms−1 in the same direction. Determine the velocity of the:
- i car as observed by the truck driver
- ii truck as observed by the car driver.
b. b A nitrogen molecule moving vertically upwards at 500 ms−1 passes an oxygen molecule travelling vertically downwards at 438 ms−1 . Determine the velocity of the
- i nitrogen molecule as observed by the oxygen molecule.
- ii oxygen molecule as observed by the nitrogen molecule.