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Tutorial ID | Title | Tutorial | Video Tutorial | Revision Notes | Revision Questions | |
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18.2 | Classical Principle of Relativity |
1. A person releases a ball from the window of a car moving at 20 m/s. the height of release is 1 m above the ground. How far from the car does the ball touch the ground?
Correct Answer: C
2. The car A is moving at 40 m/s in a highway. Two other cars B and C are moving in the same highway: the car B at 30 m/s in the same direction to A and the car C at 20 m/s in the opposite direction to A. Which is true for the velocities of cars B and C relative to an inertial system connected to the car A?
Correct Answer: D
3. A fast meteorite is moving at 50 000 km/s. What is the speed of light the flame of meteorite emits when viewed by the two observers 1 and 2 if both observers are at rest? Take the speed of light in vacuum as 300 000 km/s.
Correct Answer: C
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