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s2008m [1.1K]
3 years ago
10

Often called velocity this is the velocity of an object at a particular moment in time

Physics
1 answer:
Yuliya22 [10]3 years ago
8 0
Instantaneous speed?
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Simple Pendulum: A 34-kg child on an 18-kg swing set swings back and forth through small angles. If the length of the very light
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Answer:

The correct answer is "4.443 sec".

Explanation:

Given:

Mass of child,

= 34 kg

Mass of swing,

= 18 kg

Length,

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The time period of pendulum will be:

T = 2 \pi \sqrt{4g}

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5 0
3 years ago
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A truck tire rotates at an initial angular speed of 21.5 rad/s. The driver steadily accelerates, and after 3.50 s the tire's ang
erma4kov [3.2K]

Given:

initial angular speed, \omega _{i} = 21.5 rad/s

final angular speed, \omega _{f} = 28.0 rad/s

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\alpha = \frac{28.0 - 21.5}{3.50}

\alpha = 1.86 m/s^{2}

Therefore, angular acceleration is:

\alpha = 1.86 m/s^{2}

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Why do we need body membrane
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