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A hummingbird flies in circles around a bush. if the velocity of the hummingbird is 720 cm/s and the radius of the circular path is 9.0 cm, what is the centripetal acceleration of the hummingbird?

Respuesta :

57,600 cm/s ^2 ...........
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Answer:

57600cm/s²

Explanation:

centripetal accleration best describes the motion of the humming bird. it is the motion inwards towards the centre of a circle.

centripetal acceleration ([tex]a_{c}[/tex]) = [tex]\frac{v^{2} }{r}[/tex]

where v= velocity = 720cm/s

r=9cm

r= radius

[tex]a_{c}[/tex]= 720² ÷ 9

[tex]a_{c}[/tex]= [tex]\frac{720 * 720}{9}[/tex]= 57600cm/s²

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