A man walks at 4 ft/s on the roof of a train S that is traveling at 40 ft/s. The train is reducing its speed at rate of 10 ft/s² . At the instant shown, a car travels at 50 ft/s along a circular curve as shown. It is reducing its speed at a rate of 25 ft/s². Determine the velocity and acceleration of the man as seen by the driver of the car. Vernin = 40 ft/s atrain= 10 ft/s "man/train = 4 ft/s „Vear = 50 ft/s aLcar = 25 ft/s? 30 100 ft

A man walks at 4 ft/s on the roof of a train S that is traveling at 40 ft/s. The train is reducing its speed at rate of 10 ft/s² . At the instant shown, a car travels at 50 ft/s along a circular curve as shown. It is reducing its speed at a rate of 25 ft/s². Determine the velocity and acceleration of the man as seen by the driver of the car. Vernin = 40 ft/s atrain= 10 ft/s "man/train = 4 ft/s „Vear = 50 ft/s aLcar = 25 ft/s? 30 100 ft

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.

Question

A man walks at 4 ft/s on the roof of a train
that is traveling at 40 ft/s. The train is
reducing its speed at rate of 10 ft/s2. At
the instant shown, a car travels at 50 ft/s
along a circular curve as shown. It is
reducing its speed at a rate of 25 ft/s2.
S
Determine the velocity and acceleration of
the man as seen by the driver of the car.
-Verain= 40 ft/s
atrain = 10 ft/s²
Vman/train = 4 ft/s
Vear = 50 ft/s
acar = 25 ft/s?
%3D
30
100 ft

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