image text translation
(1)As shown in the picture, Chul-soo standing on the ground is on the approaching train
(2)The speed of the light is 30 when Chulsoo sees it
(3)It is constant at 10,000 kms and the train speed is constant at 150,000 kms relative to the ground
(4)150,000 kms
(5)300,000 kms
(6)The inside of the laser light shot by Cheolsu measured by the person on the train
(7)② 150,000 kms 20 200,000 kms
(8)①50,000 kms
(9)⑤ 450,000 kms
image text translation
To survive