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 83 N in 14 cm if the fish is initially drifting horizontally at 2.7 m/s? Assume a constant deceleration.

225.51 N

Explanation:

Using equation

v² = u² + 2as

where v final speed = 0 , u initial speed = 2.7 m/s

and it deceleration -a

0 = 2.7² - 2 × 0.14 × a

-7.29 = -0.28 a

a = -7.29 / -0.28 = 26.04 m/s²

weight = mg = 85 = m × 9.81

m = 85 N / 9.81 = 8.66 kg

minimum strength = 8.66 kg × 26.04 m/s² = 225.51 N

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