A 40 kg child is riding on a merry-go-round which is rotating with a velocity of

Question

A 40 kg child is riding on a merry-go-round which is rotating with a velocity of 1 revolution every 4 seconds. The merry-go-round has a radius of 3.0 m.
Part A: Choose the appropriate forces from the list that describe the forces acting upon the child.
You may need to choose more than one item to get this problem correct.
The natural force pointing upward.
The force the child must exert to hold on pointing outward.
The centripetal force pointing inward.
The normal force pointing upward.
The force the child must exert to hold on pointing inward.
The normal force pointing downward.
The normal force pointing to the left.
The centrifugal force pointing outward.
The weight pointing downward.

Explanation / Answer

Given that The child is riding on a merry go round with certain velocity The forces acting on the child are The centripetal force pointing inward The normal force pointing upward The weight pointing downward Description of forces: The weight of the child will be acting in the downward direction The upward force exerted by the seat of the child is the normal force Since, the merry go round is in a uniform circular motion, the centripetal force will be directed towards the center

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