As in the previous problem, you are inside a freight car on a moving train. The train moves along the track at a constant speed of 25 m/s – about 55 mph. A lightbulb hangs by its cord from the ceiling. There are no windows. During in the trip, you look up and notice that the bulb is again hanging at a constant angle of 10° with respect to vertical. This time, however, it is deflected toward the left wall of the train. You suspect the train is going around a bend in the tracks. (a) Draw a free body diagram of the light bulb. (b) Which direction is the train turning? (c) What is the radius of the curve?

As in the previous problem, you are inside a freight car on a moving train. The train moves along the track at a constant speed of 25 m/s – about 55 mph. A lightbulb hangs by its cord from the ceiling. There are no windows. During in the trip, you look up and notice that the bulb is again hanging at a constant angle of 10° with respect to vertical. This time, however, it is deflected toward the left wall of the train. You suspect the train is going around a bend in the tracks. (a) Draw a free body diagram of the light bulb. (b) Which direction is the train turning? (c) What is the radius of the curve?

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)...

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Concept explainers

Relative Velocity

It is a measurement of an object with regards to the other object which is moving or stable or stationary. For example, if we are traveling in a bus and the bus is moving at speed of 50km/hr, then our speed is according to the nearby passenger on the bus is zero. According to them, we are not moving. But if one person standing on the ground or road observes us from outside of the bus, according to him we are moving at a speed of 50km/hr and the bus is also moving at a speed of 50km/hr. Now, the motion is recognized by the observer, it depends on a frame of reference or observer. This is motion called relative motion.

Question

As in the previous problem, you are inside a freight car on a moving train. The train moves along the track at a constant
speed of 25 m/s– about 55 mph.
A lightbulb hangs by its cord from the ceiling. There are no windows.
During in the trip, you look up and notice that the bulb is again hanging at a constant angle of 10° with respect to vertical.
This time, however, it is deflected toward the left wall of the train. You suspect the train is going around a bend in the
tracks.
(a) Draw a free body diagram of the light bulb.
(b) Which direction is the train turning?
(c) What is the radius of the curve?

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