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10 Nov 2019

an airplane flies across the North pole at 500 mph, following ameridian of longitude (which rotates with the earth). Find theangle between the direction of a plumb line hanging freely in theairplane as it passes over the pole and one hanging freely at thesurface of the earth over the pole.

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Reid Wolff
Reid WolffLv2
16 Jun 2019

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

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The figure below shows a worker poling a boat — a very efficientmode of transportation — across a shallow lake. He pushes parallelto the length of the light pole, exerting on the bottom of the lakea force of 220 N. The pole lies in the vertical plane containingthe keel of the boat. At one moment the pole makes an angle of35.0° with the vertical and the water exerts a horizontal dragforce of 46.5 N on the boat, opposite to its forward motion at0.857 m/s. The mass of the boat including its cargo and the workeris 370 kg.
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The figure below shows a worker poling a boat — a very efficientmode of transportation — across a shallow lake. He pushes parallelto the length of the light pole, exerting on the bottom of the lakea force of 250 N. The pole lies in the vertical plane containingthe keel of the boat. At one moment the pole makes an angle of35.0° with the vertical and the water exerts a horizontal dragforce of 50.0 N on the boat, opposite to its forward motion at0.857 m/s. The mass of the boat including its cargo and the workeris 370 kg.

(a) The water exerts a buoyant force vertically upward on the boat.Find the magnitude of this force.

(b) Model the forces as constant over a short interval of time tofind the velocity of the boat 0.450 s after the moment described.(Take the forward direction to be the +x direction and up to be the+y direction. Indicate the direction with the sign of your answer.)

A swing ride at an amusement park rotates with a period of3.5s. The ride consists of swings attached by chains to the top ofa pole which rotates and causes the swings themselves to rotatewith constant speed. If the length of the chain connecting theswing to the axis of rotation is L=15m, find the angle the chainmakes with the vertical when the swing is in rotationalequilibrium. In other words, what is the angle the chain makes withthe horizontal such that the person continues to rotate, but staysat the same vertical height? Express your answer as an angle fromthe downwards vertical direction.

The arc is supposed to be representing theta

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