2 years ago

Match the following.

Physics

1 answer:

Eddi Din [679]2 years ago

6 0

Answer:

I don't know

Explanation:

,ssndkaadoooooooooo

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Answer:

W=315 x 10⁵ J

Explanation:

Given that

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d= 90 m

K.E.=5.4 x 10⁷ J

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Lets take work done by catapult is W

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W= 5.4 x 10⁷ - 2.5 x 10⁵ x 90 J

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W=315 x 10⁵ J

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A disk of mass M and radius R rotates at angular velocity ω0. Another disk of mass M and radius r is dropped on top of the rotat

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Answer:

$\omega = \frac{(R^2\omega_o}{(R^2 + r^2)}$

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As we know that there is no external torque on the system of two disc

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So we will have

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now we have

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also we have

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$\omega = \frac{MR^2\omega_o}{(MR^2 + Mr^2)}$

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