# How does inertia affect the motion of an object?

The affect of inertia is to cause the motion to continue without change (unless there is an outside force).

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

- A solid disk, spinning counter-clockwise, has a mass of #6 kg# and a radius of #3/5 m#. If a point on the edge of the disk is moving at #1/6 m/s# in the direction perpendicular to the disk's radius, what is the disk's angular momentum and velocity?
- The rate of rotation of a solid disk with a radius of #6 m# and mass of #5 kg# constantly changes from #32 Hz# to #18 Hz#. If the change in rotational frequency occurs over #8 s#, what torque was applied to the disk?
- In the figure, one end of a uniform beam of weight 420 N is hinged to a wall; the other end is supported by a wire that makes angles θ = 29° with both wall and beam. ?
- What is the moment of inertia of a pendulum with a mass of #2 kg# that is #12 m# from the pivot?
- A cylinder has inner and outer radii of #9 cm# and #16 cm#, respectively, and a mass of #4 kg#. If the cylinder's frequency of counterclockwise rotation about its center changes from #23 Hz# to #15 Hz#, by how much does its angular momentum change?

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