physics! please help

A long distance swimmer is able to swim through still water at 4km/hr. She wishes to swim from Port Angeles, WA due north to Victoria, B.C., a distance of 50km. An ocean current flows through the Strait of Juan de Fuca from west to east at 3km/hr. In what direction should she swim to make the crossing along a straight line between the two cities?

  1. 0
  2. 0
  3. 15
asked by Tiffany

  1. Draw a vector diagram. The velocity with respect to ground has to point directly across from PA to Victoria. It is also the vector sum of the water speed and the swimmer's velocity.
    Use trig functions to get the angle you need.

    1. 0
    2. 0
    posted by drwls

  2. the thing is. i don't know what to do witht the 50km cuz its different units from the 3km/hr and the 4km/hr

    1. 0
    2. 0
    posted by Tiffany

  3. velocity, speed, and inertia!I DON'T GET IT!!

    1. 0
    2. 0
    posted by ashley

Respond to this Question

First Name

Your Response

Similar Questions

  1. phys

    A long distance swimmer is able to swim through still water at 4km/hr. She wishes to swim from Port Angeles, WA due north to Victoria, B.C., a distance of 50km. An ocean current flows through the Strait of Juan de Fuca from west

    asked by Christine on October 20, 2008

  2. Physics

    A swimmer, capable of swimming at a speed of 1.44 m/s in still water (i.e., the swimmer can swim with a speed of 1.44 m/s relative to the water), starts to swim directly across a 2.21-km-wide river. However, the current is 0.840

    asked by Ashley on September 29, 2014

  3. PHYSICS

    A swimmer, capable of swimming at a speed of 1.24 m/s in still water (i.e., the swimmer can swim with a speed of 1.24 m/s relative to the water), starts to swim directly across a 2.24-km-wide river. However, the current is 0.553

    asked by Physics2hard4me on March 27, 2015

  4. physics

    A swimmer, capable of swimming at a speed of 1.81 m/s in still water (i.e., the swimmer can swim with a speed of 1.81 m/s relative to the water), starts to swim directly across a 2.29-km-wide river. However, the current is 1.31

    asked by anonymous on August 8, 2015

  5. physics

    A swimmer, capable of swimming at a speed of 1.18 m/s in still water (i.e., the swimmer can swim with a speed of 1.18 m/s relative to the water), starts to swim directly across a 2.16-km-wide river. However, the current is 1.19

    asked by amanda on September 11, 2015

  6. physics

    A swimmer, capable of swimming at a speed of 1.01 m/s in still water (i.e., the swimmer can swim with a speed of 1.01 m/s relative to the water), starts to swim directly across a 1.47-km-wide river. However, the current is 1.01

    asked by louis AAAAAAAAAAAAAAAAAAAA on February 7, 2013

  7. science-physics

    A swimmer, capable of swimming at a speed of 1.97 m/s in still water (i.e., the swimmer can swim with a speed of 1.97 m/s relative to the water), starts to swim directly across a 2.77-km-wide river. However, the current is 1.13

    asked by pd on October 7, 2012

  8. physics

    A swimmer, capable of swimming at a speed of 1.3 m/s in still water (i.e., the swimmer can swim with a speed of 1.3 m/s relative to the water), starts to swim directly across a 2.2-km-wide river. However, the current is 0.91 m/s,

    asked by manny on September 19, 2012

  9. Physics

    A swimmer, capable of swimming at a speed of 0.8 m/s in still water (i.e., the swimmer can swim with a speed of 0.8 m/s relative to the water), starts to swim directly across a 2.5 km wide river. However, the current is 0.91 m/s,

    asked by Bill on September 26, 2012

  10. Physics

    A swimmer wishes to swim across a river 600m wide. If he can swim at the rate of 4 km/h in still water and the river flows at 2 km/h, then in what direction must he swim to reach a point exactly opposite to the starting point and

    asked by Aashish on October 10, 2014

More Similar Questions