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Sloan [31]
3 years ago
7

Why do bicycles use gears

Chemistry
1 answer:
iren2701 [21]3 years ago
7 0
It is for safety if you come to a sudden stop like newtons law say if an object is in motion it stays in motion until a force stops it if the bike suddenly stopped then you would fly off because you wold still be going. and the gear helps protect you. 
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