Problem 11 A kayaker is at the south shore of a river, directly across the river from a pier. They point their kayak directly north, towards the pier, to cross the 60 m to the other side of the river. They can paddle the kayak at a speed of 1.5 m/s relative to the water. The river is flowing to the west at a speed of 1.2 m/s relative to the shore. How far to the west of the pier will the kayaker be when they reach the north shore? Don't forget units!

Problem 11 A kayaker is at the south shore of a river, directly across the river from a pier. They point their kayak directly north, towards the pier, to cross the 60 m to the other side of the river. They can paddle the kayak at a speed of 1.5 m/s relative to the water. The river is flowing to the west at a speed of 1.2 m/s relative to the shore. How far to the west of the pier will the kayaker be when they reach the north shore? Don't forget units!

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter4: Motion In Two And Three Dimensions

Section: Chapter Questions

Problem 78P: A river is moving east at 4 m/s. A boat starts from the dock heading 30 north of west at 7 m/s. If...

See similar textbooks

Similar questions

(a) Repeat the problem two problems prior, but for the second leg you walk 20.0 m in a direction 40.0° north of east (which is equivalent to subtracting B from A that is, to finding R=AB ). (b) Repeat the problem two problems prior, but now you first walk 20.0 m in a direction 40.0° south of west and then 12.0 m in a direction 20.0° east of south (which is equivalent to subtracting A from B that is, to finding R=BA=R ). Show that this is the case.
Two birds begin next to each other and then fly through the air at the same elevation above level ground at 22.5 m/s. One flies northeast, and the other flies northwest. After flying for 10.5 s, what is the distance between them? Ignore the curvature of the Earth.
Carolyn rides her bike 40.0 south of west for 5.40 miles as illustrated in Figure P3.25. What is the distance she would have to ride due south and due west to reach the same location?
Glenda and Harold are attempting to cross a river in a kayak. The river flows due east at 1.9 m/s. Glenda and Harold head the kayak due north and row at 2.4 m/s (relative to the water). The river is 38 m wide at this location. a. Determine the resultant velocity of the boat - both magnitude and direction.b. Determine the time for Glenda and Harold to cross the river.c. How far downstream will the boat be when Glenda and Harold reach the opposite shore?
Ty Ridlegs boards a paddle boat and heads the boat westward directly across a river. The river flows south at 48 cm/s. Ty paddles the boat with a speed of 98 cm/s. a. Determine the resultant velocity of the boat - both magnitude and direction.b. If the river is 22 m wide at this location, then how much time does it take Ty to cross the river? Assume that Ty keeps his paddle boat headed west.c. How far downstream will Ty be when he reaches the other side of the river?
A player kicks the football at a 46 degree angle with the horizontal, with an initial speed of 12.0 m/s. A second player standing at a distance of 30.0m from the first ( in the direction of the kick) starts running to meet the ball at the instant it is kicked. a.) how fast just get run in order to catch the ball just before it hits the ground express your answer in meters per second?
Q2/ Ricardo and Jane are standing under a tree in the middle of a pasture. An argument ensues, and they walk away in different directions. Ricardo walks 26.0 m in a direction 6Oo west of north. Jane walks 16.0 m in a direction 30o south of west. They then stop and turn to face each other.
A plane is flying South with speed of 900 km/h. At a specific movement the wind start blowing West with speed of 50 km/h. A. Make a representation of the plan with its speed and the speed of the wind. B. Determine the resultant velocity acting on the plane. (Please explain)
A bird flies 3.0 km due west and then 2.0 km due north. Another bird flies 2.0 km due west and 3.0 km due north. What is the angle between the net displacement vectors for the two birds?A. 23° B. 34° C. 56° D. 90°
Geese migrate along north and south directions for well over a thousand kilometers in some cases traveling speeds up to about 100 km/h. If one such bird is flying at 100km/h relative to the air but there is a 34.0 km/h wind blowing from the west to east. A.) at what angle relative to the north-south direction should this bird head so that it will be traveling directly southward relative to the ground? Express answer in degrees b.) how long will it take the bird to cover a ground distance of 500 km from north to south? ( Note: Even on cloudy nights many birds navigate using the earth's magnetic field to fix the north-south direction)
A person in the passenger basket of a hot-air balloon throws a ball horizontally outward from the basket with speed 10 m/s a. What initial velocity (magnitude and direction) does the ball have relative to a person standing on the ground if the hot-air balloon is rising at 5.0 m/sm/s relative to the ground during this throw? b. Express your answer to three significant figures and include the appropriate units. c. What initial velocity (magnitude and direction) does the ball have relative to a person standing on the ground if the hot-air balloon is descending at 5.0 m/sm/srelative to the ground? d. Express your answer to three significant figures and include the appropriate units.
027. A common housefly (Musca domestica) in a top corner of a 7.0 m X 10.0 m × 3.5 m room walks to the lowest opposite corner of the room. a. What will be the magnitude of its net displacement after its epic trip? b. If the fly walks only along the edges of the room, what is the shortest distance it must walk? c. If it is not restricted to the edges, what is the distance of the most direct route the fly must walk to reach its destination? d. Name the surfaces that the fly crosses in Part c.