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3 years ago

Avg velocity definition | Problem Average velocity vectors…

Physics

1 answer:

Aneli [31]3 years ago

3 0

Answer:

point in the same direction as the change in position.

require knowing the initial and final position, along with the elapsed time.

Explanation:

As we know that average velocity is defined as the ratio of change in position and the time interval of the object

It is given as

$v_{avg} = \frac{\Delta x}{\Delta t}$

so we will have

$\Delta x$ = displacement

$\Delta t$ = time interval

the direction is this average velocity is always along the direction of the displacement

so correct answer will be

point in the same direction as the change in position.

require knowing the initial and final position, along with the elapsed time.

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drek231 [11]

The new oscillation frequency of the pendulum clock is 1.14 rad/s.

The given parameters;

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Length of the pendulum, = L
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$I_i = \frac{1}{3} ML^2$

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$I_f = \int\limits^L_{L/2} {r^2\frac{M}{L} } \, dr = \frac{M}{3L} [r^3]^L_{L/2} = \frac{M}{3L} [L^3 - \frac{L^3}{8} ] = \frac{M}{3L} [\frac{7L^3}{8} ]= \frac{7ML^2}{24}$

Apply the principle of conservation of angular momentum as shown below;

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Thus, the new oscillation frequency of the pendulum clock is 1.14 rad/s.

Learn more about moment of inertia of uniform rod here: brainly.com/question/15648129

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