College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Question
An inventive child wants to
reach an apple in a tree without climbing the tree. Sitting
in a chair connected to a
rope that passes over a frictionless pulley (Fig. P4.88),
the child pulls on the loose
end of the rope with such a
force that the spring scale
reads 250 N. The child's
true weight is 320- N, and
the chair weighs 160 N. The
child's feet are not touching
the ground. (a) Show that the acceleration of the system is ufrward, and find its magnitude. (b) Find the force the child exerts on the chair
Transcribed Image Text:Figure P4.88
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