A person travels in a car with a speed

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A person travels in a car with a speed of 90 m/s. To get the driver's attention, a stationary police officer behind the car shines his spotlight at the car. If the officer is 270 m behind the car when he turns on his spotlight, how long does it take for the light to reach the car? An astronaut travels at a speed of 0.98c from the Earth to a distant star that is 6.2 1017 m away. If the astronaut is 33 years old when she begins her trip, how old is she when she arrives at the star?

Reference no: EM13668325

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A person travels in a car with a speed : A person travels in a car with a speed of 90 m/s. To get the driver's attention, a stationary police officer behind the car shines his spotlight at the car. If the officer is 270 m behind the car when he turns on his spotlight, how long does it take ..

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