# Tension in a fishing line

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1. The tension at which a fishing line snaps is commonly called the line's "strength." What minimum strength is needed for a line that is to stop a salmon of weight 85 N in 8.0 cm if the fish is initially drifting at 2.5 m/s? Assume a constant deceleration.

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#### Solution Preview

Weight of the salmon=w= 85 N

Acceleration due to gravity g= 9.81 m/s^2

Mass of the salmon=w/g= 8.66 Kg =85/9.81

v1= 2.5 m/s

v2= 0 m/s

x=distance travelled= 8 cm= 0.08 m

v^2=v1^2+2ax, assuming constant ...

#### Solution Summary

The solution calculates the minimum strength is needed for a line that is to stop a salmon.

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