An electric buzzer is activated, then sealed inside a glass chamber. When all of the air is pumped out of the chamber, how is th
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Answer:
(a). The average speed is 51.83 m/s.
(b). The average velocity over one revolution is zero.
Explanation:
Given that,
Angular velocity = 110 rev/m
Radius = 4.50 m
(a). We need to calculate the average speed
Using formula of average speed
(b). The average velocity over one revolution is zero because the net displacement is zero in one revolution.
Hence, (a). The average speed is 51.83 m/s.
(b). The average velocity over one revolution is zero.
Using Newton's Second Law, we can find the air resistance. We know the net force is equal to mass times acceleration.