(1)Question 12. We’re going at 50 kilometers per second. What do you care about when you drive?
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(2)It’s going at 50km per second.
(3)What do you care about when you drive?
(1)On the bike path at Han River Park,
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(2)Wearing a safety helmet 29 Speed Compliance NO Drinking
Japan’s 50km/s motorcycle vs Korea’s 20km/s bike
What’s scarier?
I’ll walk 20 kilometers per second on my bike. shivering