A boat, whose speed in still water is 2.5 m/s, must cross a 285-m-wide river and arrive at a point 118 m upstream from where it starts. To do so, the pilot must head the boat at a 45.0° upstream angle. What is the speed of the river's ?current

A boat, whose speed in still water is 2.5 m/s, must cross a 285-m-wide river and arrive at a point 118 m upstream from where it starts. To do so, the pilot must head the boat at a 45.0° upstream angle. What is the speed of the river's ?current

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

A turtle is swimming across a creek that is 15 m wide. The turtle can swim at 66 cm/s in still water. As it crosses the river's 3 m/s current carries the turtle downstream. What is the resultant velocity of the turtle? (Give the angle relative to the current.) Submit Answer Tries 0/10 How long will it take the turtle to make it to the other Submit Answer side of the creek? Tries 0/10 How far will the turtle Submit Answer drift downstream while trying to Tries 0/10 cross?
You are standing on the shore by a creek skipping rocks across the water. The rock skips off the water at an angle of 5.00° and at a speed of 4.00 m/s. How far does the rock travel before it next hits the water? 1. 3.25m 2. 0.0248m 3. 4.88m 4. 0.284m
After flying for 20 min in a wind blowing 39 km/h at an angle of 22° south of east, an airplane pilot is over a town that is 60 km due north of the starting point. What is the speed of the airplane relative to the air?
Macy kicks a ball towards a goal gate at a distance of 14.5m from the gate. The height of the top bar of a soccer goal gate is 2.52m. After the kick, the initial velocity of the ball is 19.5 m/s at 68.0° from the vertical. Does the ball travel into the gate (under the top bar)? Give a detailed calculation to support your answer. 68.0° ball Goal gate 2.52m 14.5 m ground
A river is 1 km wide and flows at a velocity of 1.5 km/h. You want to cross straight to the other side of the river by swimming at a velocity of 2.5 km/h.In what direction you should swim? What time will take you to cross the river?
A fish swims directly east across a river, but it is pulled 672m downstream (south) by a strong 6.00 m/s current. The fish was going at its maximum speed of 4.0 m/s(relative to the water) directly across the river. a) How wide is the river? b) How long does it take the fish to cross the river? c) What was the fish's speed relative to the shore? d) What is the angle of the resultant vector? e) A fish swims directly across a river, but it's pulled by a strong current. If the river current doubled, then the time required for the fish to reach the opposite shore would be : one quarter, one half, doubled, the same?
A gun fires a bullet with an initial velocity of 481.7 m/s at a small target 55.82 m away. a) At what height, above the center of the target, must the gun be aimed so that the bullet hits the center of the target?
A boat traveling across a river has a resultant velocity of 10 km/h and travels 34 degrees with respect to the shore. A) What is the boats velocity in m/s? B) What is the velocity of the river in m/s?
A swimmer with a still water velocity of 8.00km/hr heads South across a stream that flows directly East with a velocity of 4.00km/hr. a) What will be the resultant velocity of the swimmer if he does not fight the current ? b) If the stream is 500.m wide, how long will it take the swimmer to reach the opposite side if he does not fight the current ? c) How far downstream will the swimmer be carried if he does not fight the current ? d) What must be the swimmers heading if he is to keep a path directly South across the stream ? e) How long will it take the swimmer to cross the stream if he keeps his heading ?
d) Ollie the river otter sets out to cross a 50.0 m wide river to a point directly on the other side.Upon her arrival on the other bank, she realizes that she has drifted 96.0 m downstream. The speed of the otter relative to the water is 0.120 m/s. (d) Determine the velocity of Ollie to the shore Your Answer: Answer units
A fireman d=53.0 m away from burnjng building directs a stream of water from a ground-level fire hose at an angle 29 degrees . If the speed of the stream as it leaves the hose is v_{i} = 40.0m / s at what height will the stream of water strike the building
A fire hose ejects a stream of water at an angle of 36.1° above the horizontal. The water leaves the nozzle with a speed of 24.0 m/s. Assuming that the water behaves like a projectile, how far from a building should the fire hose be located to hit the highest possible fire? Number i Units +