A train travels due south at 29 m/s (relative to the ground) in a rain that is blown toward the south by the wind. The path of each raindrop makes an angle of 740 with the vertical, as measured by an observer stationary on the ground. An observer on the train, however, sees the drops fall perfectly vertically Determine the speed of the raindrops relative to the ground. Number Units Use correct number of significant digits; the tolerance is +/-2% Question Attempts: 0 of 15 used SAVE FOR LATER SUBMIT ANSWER

A train travels due south at 29 m/s (relative to the ground) in a rain that is blown toward the south by the wind. The path of each raindrop makes an angle of 740 with the vertical, as measured by an observer stationary on the ground. An observer on the train, however, sees the drops fall perfectly vertically Determine the speed of the raindrops relative to the ground. Number Units Use correct number of significant digits; the tolerance is +/-2% Question Attempts: 0 of 15 used SAVE FOR LATER SUBMIT ANSWER

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 missile is launched at an angle of 60 degrees up from the horizontal. Between 2 and 3 seconds after launch, it is seen to cover 30 m in the horizontal direction. With what speed (to 2 significant figures) was the rocket launched?
An object moving horizontally approaches an edge of a cliff with theunknown speed v. What is the value of the speed if it lands at thedistance ? from the foot of the cliff and the height of the cliff is h?
A golf ball is hit off a tee at the edge of a cliff. Its x and y coordinates as functions of time are given by x = 17.2t and y = 4.16t − 4.90t2, where x and y are in meters and t is in seconds. (a) Write a vector expression for the ball's position as a function of time, using the unit vectors î and ĵ. (Give the answer in terms of t.) = m By taking derivatives, do the following. (Give the answers in terms of t.) (b) obtain the expression for the velocity vector as a function of time = m/s(c) obtain the expression for the acceleration vector as a function of time = m/s2(d) Next use unit-vector notation to write expressions for the position, the velocity, and the acceleration of the golf ball at t = 3.18 s. = m = m/s = m/s2
A rabbit runs across a parking lot on which a set of the coordinate axis has been drawn. The coordinates of the rabbit’s position as a function of time t are given by: x = -0.3t2 + 5t + 28 and y = 0.22t2 - 8t + 30 with t in seconds and x and y in meters. What is the velocity at t= 10 sec?
A wildlife researcher is tracking a flock of geese. The geese fly 4.5 kmkm due west, then turn toward the north by 30 ∘∘ and fly another 5.0 kmkm . How far west are they of their initial position? What is the magnitude of their displacement?
In the projectile experiment if an object of initial speed 60m/s is thrown in angle 30 horizontal, The maximum distance vertically traveled (height) through motion is: (g=10m/s2)
A field biologist is studying the migration patterns of northern gannets (a type of seabird). On one particular day, she records that they fly 5.0 km northeast, then turn toward to the south of east by 30◦ and fly 4.0 km in the new direction. How far east of their original position are the birds?
A fireworks show is choreographed to have two shells cross paths at a height of 154 feet and explode at an apex of 191 feet under normal weather conditions. If the shells have a launch angle θ = 56° above the horizontal, determine the common launch speed v0 for the shells, the separation distance d between the launch points A and B, and the time t from the launch at which the shells explode.
An athlete crosses a 29 m wide river by swimming perpendicular to the water current at a speed of 1.1 m/s relative to the water. He reaches the opposite side at a distance 35m downstream from his starting point. How fast is the water in the river flowing with respect to the ground in m/s?
A drowsy cat is looking at a window from across the room, and sees a flowerpot that sail first up and then down past the window. The pot is in view for a total of 0.54 s, and the top-to-bottom height of the window is 1.86 m. How high above the window top does the flowerpot go?
what is the resultant magnitude and directions? Given the vectors A= 6i + 9j, B = -9i + 9j, and C= 15i - 10j
Suppose you take two steps and (that is, two nonzero displacements). Under what circumstances can you end up at your starting point? More generally, under what circumstances can two nonzero vectors add to give zero? Is the maximum distance you can end up from the starting point A+B the sum of the lengths of the two steps?