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ohaa [14]
3 years ago
10

Does a rigid object in uniform rotation about a fixed axis satisfy the first and second conditions for equilibrium?

Physics
1 answer:
Vladimir [108]3 years ago
7 0

Answer:

Explanation:

a rigid object in uniform rotation about a fixed axis does not satisfy both the condition of equilibrium .

First condition of equilibrium is that net force on the body should be zero.

or F net = 0

A body under uniform rotation is experiencing a centripetal force all the time so F net ≠ 0

So first condition of equilibrium is not satisfied.

Second condition is that , net torque acting on the body  must be zero.

In case of a rigid object in uniform rotation , centripetal force is applied towards the centre ie  towards the  line joining the body under rotation with the axis .

F is along r

torque = r x F

= r F sinθ

θ = 0 degree

torque = 0

Hence 2nd condition is fulfilled.

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a= \frac{v_f^2-v_i^2}{2d}
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The number of charge drifts are 3.35 X 10⁻⁷C

<u>Explanation:</u>

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Radius of the wire, r = 2 mm = 2 X 10⁻³m

Cross section, 3 ms

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