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2 years ago

5

A golfer’s arm rotates 1/2 of a revolution in 1/10 of a second. If the angular displacement is measured in radians, which statem

ents are true? Check all that apply. The angular velocity is 10π rad/sec. multiple can be chosen
A)The angular velocity is 10π rad/min.
B)The angular velocity is 60π rad/min.
C)The angular velocity is 600π rad/sec.
D)The angular velocity is 600π rad/min.

2 answers:

RSB [31]2 years ago

7 0

Answer:

A and D

Step-by-step explanation:

<h2>a)</h2>

$\frac{.5 rev}{.1 }$ = 5 rev/sec

-- Convert to radians

$\frac{5 rev}{1 sec} * 2\pi =10 \frac{radians}{sec}$

<h2 /><h2>d) </h2>

$10\frac{rad}{sec}*\frac{60 sec}{1 min}$ = 600 rad/min

anyanavicka [17]2 years ago

6 0

We know that

<span>The angular velocity is 10π rad/sec
step 1
convert to rad/min
1 min-----60 sec
X min----> 1 sec
X=1/60 min
V=</span>10π rad/(1/60)------> V=600 π rad/min

the answer is the option
<span>D)The angular velocity is 600π rad/min.</span>

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<h3>Methods by which the line of best fit is found</h3>

The given data is presented in the following tabular format;

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The equation of the line of best fit is given by the regression line

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$\hat Y = \mathbf{b_0 + b_1 \cdot X_i}$

Where;

$\hat Y$ = Predicted value of the<em> i</em>th observation

b₀ = Estimated regression equation intercept

b₁ = The estimate of the slope regression equation

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The y-intercept given to the nearest tenth is b₀ ≈ 1,042

The equation of the line of best fit is therefore;

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