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Papessa [141]
4 years ago
10

A turbine blade rotates with angular velocity ω(t) = 8.00 rad/s - 0.20 rad/s3 t 2. what is the angular acceleration of the blade

at t = 6.8 s?
Physics
1 answer:
Irina18 [472]4 years ago
4 0
Given: <span>ω(t) = 8.00 - 0.2*t^2

Differentiating both sides with respect to time we get:
angular acceleration = </span>α(t) = -0.2 * 2 *t 

At t = 6.8 sec,
angular acceleration = α(t) = -0.2 * 2 *6.8 = -2.72 rad/s^2
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Explanation:

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Marta_Voda [28]

a) 10 m/s

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Explanation:

a)

The body is moving with a constant acceleration, therefore we can solve the problem by using the following suvat equation:

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u = 0 (the body starts from rest)

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b)

In this second part, we want to calculate the distance travelled by the body.

We can do it by using another suvat equation:

v^2-u^2=2as

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uysha [10]

Answer

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Explanation:

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