A mother and her child are skiing together, and the mother is holding the end of a rope tied to the child's waist. They are moving at a speed of 7.2 km/h on a gently sloping portion of the ski slope when the mother observes that they are approaching a steep descent. She pulls on the rope with an average force of 7 N. Knowing the coefficient of friction between the child and the ground is 0 1 and the angle of the

A mother and her child are skiing together, and the mother is holding the end of a rope tied to the child's waist. They are moving at a speed of 7.2 km/h on a gently sloping portion of the ski slope when the mother observes that they are approaching a steep descent. She pulls on the rope with an average force of 7 N. Knowing the coefficient of friction between the child and the ground is 0 1 and the angle of the

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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Concept explainers

Types of loading

In mechanical terminology, the term load indicates that external force/weight, either constant or variable, acts on a mechanical member/structure. The weight of an object of a specific material is also an external load, and the external force that works on a structure comes under the categories of loading. The external load generates its effects as stress and strain in the structure.

Question

PROBLEM 12.10
A mother and her child are skiing together, and the
mother is holding the end of a rope tied to the child's
waist. They are moving at a speed of 7.2 km/h on a
gently sloping portion of the ski slope when the
mother observes that they are approaching a steep
descent. She pulls on the rope with an average force
of 7 N. Knowing the coefficient of friction between
the child and the ground is 0.1 and the angle of the
rope does not change, determine (a) the time required
for the child's speed to be cut in half, (b) the distance
traveled in this time.

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