A river has a steady speed of 0.650 m/s. A student swims upstream a distance of 1.00 km and swims back to the starting point. If the student can swim at a speed of 1.50 m/s in still water, how long does the trip take (swimming up and down in the current)? s If the water were still, by how much would the trip be longer or shorter? (Give a negative answer for a shorter trip.)

A river has a steady speed of 0.650 m/s. A student swims upstream a distance of 1.00 km and swims back to the starting point. If the student can swim at a speed of 1.50 m/s in still water, how long does the trip take (swimming up and down in the current)? s If the water were still, by how much would the trip be longer or shorter? (Give a negative answer for a shorter trip.)

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter2: Motion In One Dimension

Section: Chapter Questions

Problem 23P: The driver of a car slams on the brakes when he sees a tree blocking the road. The car slows...

See similar textbooks

Similar questions

A person walks up a stalled 15-m-long escalator in 90 s. When standing on the same escalator, now moving, the person is carried up in 60 s. How much time would it take that person to walk up the moving escalator? Does the answer depend on the length of the escalator?
A river has a steady speed of 0.500 m/s. A student swimsupstream a distance of 1.00 km and swims back to the startingpoint. If the student can swim at a speed of 1.20 m/s in stillwater, how long does the trip take? Compare this with the time thetrip would take if the water were still.
A boat can travel 2.3 m/s in still water. If the boat travels across a stream whose current is 1.2 m/s what is the boat's velocity ( magnitude and direction) compared to the shore? What will the position of the boat be after 3.00 s?
A dolphin in an aquatic show jumps straight up out of the water at a velocity of 12.5 m/s. How high (in m) does his body rise above the water? How long (in s) is the dolphin in the air? Neglect any effects due to his size or orientation.
At one instant, a bicyclist is 50 m due east of a park's flagpole, going due south with a speed of 18 m/s. Then, 13 s later, the cyclist is 45 m due north of the flagpole, going due east with a speed of 13 m/s. For the cyclist in this 13 s interval, what is the displacement (m) and direction north of west, average velocity (m/s) and direction north of west and the average acceleration and direction north of east?
Old faithful geyser in Yellowstone national park shoots water hourly to a height of 40 meters. With what velocity does the water leave the ground?
One train is traveling 120 m with a velocity of 52 km/h and a second train is traveling in the opposite direction with a velocity of 20 km/h. How long will it take for them to completely pass one another?
Two trains travel in the opposite direction, leaving each of the opposite stations which call station A and station B. The train A departs at a constant speed of 150[km/h], while the train B leaves from rest with constant acceleration of 1,5[m/s]. HOW far and at what time do the two trenes intersect? Consider that the two stations are separated by a distance of 10[km].
A projectile is launched on the Earth with a certain initial velocity and moves without air resistance. Another projectile is launched with the same initial velocity on the Moon, where the acceleration due to gravity is one-sixth as large. How does the range of the projectile on the Moon compare with that of the projectile on the Earth? (a) It is one-sixth as large. (b) It is the same. (c) It is 6 times larger. (d) It is 6 times larger. (e) It is 36 times larger.
The driver of a car slams on the brakes when he sees a tree blocking the road. The car slows uniformly with an acceleration of 5.60 m/s2 for 4.20 s, making straight skid marks 62.4 m long, all the way to the tree. With what speed does the car then strike the tree?
A swimmer travels at 0.8 m/s heading south across a small lake. At the same time, a second swimmer heads north from the opposite shore at a speed of 0.4 m/s. How wide is the lake if the two swimmers meet 12 min later?
A Chinook (King) salmon (Genus Oncorynchus) can jump out of water with a speed of 5.55 m/s. If the salmon is in a stream with water speed equal to 1.65 m/s, how high in the air can the fish jump if it leaves the water traveling vertically upwards relative to the Earth?