If an object moves in uniform circular motion in a circle of radius r = 1.0 meter, and the object takes 4.0 seconds to complete ten revolutions, calculate the centripetal acceleration.

Explanation:

The formula for centripetal acceleration is:

Where,

radius.

Angular speed.

Angular speed is defined by:

Where,

position angle.

time.

In this case we have that the object takes 4.0 seconds to complete ten revolutions.

You have to know that 1 revolution = , then

10 revolutions=

Replacing

in the formula of Angular speed:

Now we have,

r=1.0m

Then the centripetal acceleration is:

there is no correct list among the choices you've provided.

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-- baby human

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-- flute

-- soprano singer

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