The angular velocity of a body is given by -3-2-3k- A torque - -2- -3- -4k- acts on it- Then rotational power will be-

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Rotational Power

The angular v...

Question

The angular velocity of a body is given by $\to ω = 3^i + 2^j + 3^k$ . A torque $\to τ = 2^i + + 3^j + 4^k$ acts on it. Then rotational power will be:

12 w a t t

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24 w a t t

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16 w a t t

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8 w a t t

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Solution

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\to ω = 2 ˆ i + 3 ˆ j + 4 ˆ k

\to τ = ˆ i + 2 ˆ j + 3 ˆ k

\to ω = 2 ˆ i + 3 ˆ j + 4 ˆ k

\to τ = ˆ i + 2 ˆ j + 3 ˆ k

\to F = 2^i - 3^j + 4^k

\to r = 3^i + 2^j + 3^k

\to F

^i

^j

^k

\to r

^i

^j

^k

\to F = (2^i - 3^j + 4^k)

\to r = (3^i + 2^j + 3^k)

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