Concept explainers
Describe all the force acting on a child riding a horse on a merry-go-round. which of these forces provides the centripetal acceleration of the child?
Answer to Problem 4Q
Solution:
All the force acting on a child riding a horse on a merry-go-round
(1)The weight of child vertically downward.
(2)Normal reaction in the vertical direction ( Nv)
(3)Static friction force (fs)in the horizontal direction
Static friction between horse and child provide centripetal acceleration
Explanation of Solution
The weight of child:
It is the force exerted by Earth on child and acts vertically downward direction.
Normal reaction:
It is a normal reaction between horse and boy contact surface and acts vertically
Friction force:
The friction force is a self-adjustable force and acts between the contact surface of boy and horse. It provides centripetal acceleration.
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