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svetlana [45]
3 years ago
6

When a rigid body rotates about a fixed axis, all the points in the body have the same

Physics
1 answer:
timama [110]3 years ago
5 0

Hi there!

\large\boxed{\text{Angular acceleration.}}

For a rigid body rotating about a fixed axis, its angular characteristics ⇒ angular acceleration and velocity are constant throughout.

However, its LINEAR velocities/accelerations differ because of the following relationships:

v = ωr

a = αr

Thus, a point closer to the axis of rotation has a smaller linear velocity or acceleration compared to a point along the edge.

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Two vectors of magnitudes 30 units and 70 units are added to each other. What are possible results of this addition? (section 3.
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the correct answer is option C which is 50 units.

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given,

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so, resultant vector

=\sqrt{a^2+b^2-2 a b cos\theta}\ to\ \sqrt{a^2+b^2+ 2 a b cos\theta}

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