Question

Linear Speed and Angular Speed!!! Please help, I don't understand the problem.
*A wheel of radius 30 cm revolves at a rate of 10 revolutions per second. A dot is painted at a point P on the rim of the wheel.
a.) Find dx/dt as a function of theta
b.) When is the absolute value of the rate of change of x the greatest? Least?

Answer 1

how about using
\[ x = r \ \cos \theta\]
with r= 30
take the derivative with respect to time "t" of both sides.

Answer 2

how does it become x=r cosθ ?

Answer 3

If the wheel is fixed, and spinning, and we measure the angle from the positive x-axis, then by geometry, x (horizontal distance from the center) is r cos theta
or is this wheel moving along a road ?

Answer 4

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This sentence is an exam

Answer 5

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Answer 6

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Answer 7

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Answer 8

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Answer 9

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"The supreme executive power shall be vested in a governor, who shall be commander-in-chief of all military

Answer 10

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Answer 11

someone pls help
The governments of the United States and Florida are similar bec

Answer 12

pls help me
The governments of the United States and Florida are similar because

Answer 13

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The reason for her keeping them so long was that they were .

Answer 14

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Answer 15

The governments of the United States and Florida are similar because they both

c

Answer 16

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Answer 17

The governments of the United States and Florida are similar because they both

c

Answer 18

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Answer 19

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Answer 20

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Answer 21

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I don't know where the snow came from for there were stars out.

Answer 22

Which two parts of this excerpt from Leo Tolstoy's The Death of Ivan Ilyich sugge

Answer 23

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