Question

A fan rotates at a uniform rate of 500
rpm. Find the speed of an atom of the
blade located 2 m from the centre.​

Answer 1

Answer:

Centripetal acceleration acts on the object along the radius towards the centre of the circular path.

When a point object is moving on a horizontal circular path with a constant speed, the direction of its velocity vector at an instant is changing with time. It means in a uniform circular motion the velocity vector of the object is changing with time. This indicates that the uniform circular motion is an example of accelerated motion.

Here, acceleration of a point at the tip of the blade

= centripetal acceleration

=ω

2

R=(2πf)

2

R

=(2×

7

22

×

60

1200

)

2

×

100

30

=4740 m/s

2

Explanation:

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Answer 2

Explanation:

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