Help please, it’s on my physics paper!

15.4

Explanation:

770x14% = 107.8

rearrange f =kx to get k (constant)

k = f/x

x is the distance stretched , so 42 - 35 =7

so 107.8/7 =15.4

can someone double check

a=d/t

a="triangle"v/t

explanation:

a = acceleration

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