Precalculus

posted by .

Anthony is trying to cross the Mississippi river in a kayak. He is traveling due east at 6 ft/second. However there is a current that is traveling due north at 4 ft/sec. find the new speed and direction of Anthony and his kayak. If the distance across the Mississippi is 120 ft, determine if Anthony would make it to the other side faster if there was a current of if there wasn't

  • Precalculus -

    new speed = √(6^2+4^2) = √52 ft/s

    If he rows for the opposite bank, his crossing takes the same time, regardless of the currents' speed.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics

    A 200-m-wide river flows due east at a uniform speed of 4.9 m/s. A boat with a speed of 9.0 m/s relative to the water leaves the south bank pointed in a direction 33o west of north. What is the (a) magnitude and (b) direction of the …
  2. College Physics :/

    a ship is traveling due east at 10 km/h. what must be the speed of a second ship heading 30 degrees east of north if it is always due north of the first ship?
  3. Physics

    A 343-kg boat is sailing 16.2° north of east at a speed of 1.98 m/s. Thirty seconds later, it is sailing 37.5° north of east at a speed of 3.76 m/s. During this time, three forces act on the boat: a 30.3-N force directed 16.2° north …
  4. physics

    A 316-kg boat is sailing 12.0° north of east at a speed of 1.60 m/s. 39.0 s later, it is sailing 36.0° north of east at a speed of 4.00 m/s. During this time, three forces act on the boat: a 31.4-N force directed 12.0° north of …
  5. physics

    A boat is traveling on a bearing of 25 degrees East of North at a speed of 4 knots (a knot is 1.852 km/h). After traveling for 3 hours, the boats heading is changed to due South and it travels for an additional 2 hours at 5 knots. …
  6. Physics

    A 130-m-wide river flows due east at a uniform speed of 4.1m/s. A boat with a speed of 6.6m/s relative to the water leaves the south bank pointed in a direction 29o west of north. What is the (a) magnitude and (b) direction of the …
  7. math

    Tom flies the helicopter through calm skies at a velocity v1. The direction of v1 is 15o north of east, and the speed is 180 km/h. Eventually, however, he enters a windy part of the atmosphere and finds that his helicopter now moves …
  8. Physics

    A 1500kg car traveling at a steady speed of 20 m/s initially due northwest round a corner so that after 10s, it is traveling due northeast. What is the magnitude and direction of the net force that must be acting on the car at the …
  9. Physics

    A 1300 kg car traveling at a steady speed of 15 m/s initially due northwest round a corner so that after 10s, it is traveling due northeast. What is the magnitude and direction of the net force that must be acting on the car at the …
  10. physics

    Suppose a river flows due south with a speed of 2.0 m/s. Given that speed of motorboat relative to water is 4.2 m/s due east. (a) In what direction should the motorboat head to reach a point on the opposite bank directly east from …

More Similar Questions