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devlian [24]
3 years ago
7

Suppose the width of your fist is 4.1 inches and the length of your arm is 35.4 inches. Based on these measurements, what will b

e the angular width (in degrees) of your fist held at arm’s length?

Physics
1 answer:
kakasveta [241]3 years ago
4 0

Answer:

7 degree

Explanation:

given data

width = 4.1 inches

length = 35.4 inches

solution

we consider as per fig

O is mid point of BC

so  OB  = 2.05 inches

and

AB = \sqrt{OB^2 + OA^2}

AB = \sqrt{2.05^2 + 35.4^2}

AB = 35.078 inches

so

sin \frac{\alpha }{2} = \frac{OB}{AB}

sin \frac{\alpha }{2} = \frac{2.05}{35.078}

\alpha = 7 degree

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