PHYSICS · Multi-part · A Level · Physics · Turning points in physics · Turning points in physics
Problem
Two identical twins, Minky and Som, conduct their own twin paradox. Minky stays at home on Earth, whilst Som travels to a nearby star, Fazer, which is 10 light-years away, at a speed of 0.9c. When Som reaches Fazer, she turns around and returns to the Earth, once again at a speed of 0.9c.
(1) Calculate how much time Minky measures for Som to reach Fazer.
(2) Calculate how much Som has aged in her reference frame of the moving spaceship.