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koban [17]
3 years ago
8

1.

Mathematics
1 answer:
Musya8 [376]3 years ago
5 0

Yo sup??

From Newton's 2nd law of motion

F*t=Δp

=mv-mu

mu=0.4*15

=6

t=0.2

mv=0

Therefore

F*0.2=6

F=30 N

Hope this helps.

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