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Susan can row a boat at 4.0 m/s in still water. While trying to row
directly across a river from west to east, Susan is pulled by a current
flowing southward at 3.0 m/s. How fast does Susan row relative to the
shore?

Respuesta :

onyebuchinnaji

The velocity of Susan's boat relative to the offshore when she encountered the water current is 5 m/s.

The given parameters;

  • Velocity of the Susan's boat in still water, Vb = 4 m/s
  • Velocity of the water current, Vw = 3 m/s

The velocity of Susan's boat relative to the offshore when she encountered the water current is calculated as follows;

[tex]V_{b/o} ^2 = V_b^2 + V_w^2\\\\V_{b/o} = \sqrt{V_b^2 + V_w^2} \\\\\V_{b/o} = \sqrt{4^2 + 3^2}\\\\V_{b/o} = 5 \ m/s[/tex]

Thus, the velocity of Susan's boat relative to the offshore when she encountered the water current is 5 m/s.

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