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serg [7]
4 years ago
5

In the doorknob shown above, when the handle is rotated a distance of 189 millimeters, the spindle is rotated a distance of 27 m

illimeters. What is the mechanical advantage of this doorknob? A. 7 B. 27 C. 189 D. 20
Physics
2 answers:
Alisiya [41]4 years ago
7 0

If my math is right its A) 7

because 189 divided by 27 is 7

Klio2033 [76]4 years ago
5 0

I’m thinking it’s A! Sorry if I’m wrong! :)

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s_{f} = 14.312 m

Explanation:

Since the particle is experimenting a constant acceleration, the displacement can be found by using this formula:

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Since s_{o} = 0 m, the equation is simplified to this form:

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s_{f} = \frac{(12.2 \frac{m}{s})^{2}-(6.1 \frac{m}{s})^{2}}{2 \cdot (3.90 \frac{m}{s^{2}}) } \\s_{f} = 14.312 m

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