I believe the answer is A. hope this helps :)
The answer is <span>force.
Hope this helps!
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Answer:
f= 0.48 s⁻¹
Explanation:
Given that
Mass of the ladder ,m= 6 kg
L= 2 m
Mass of artist ,M= 42 kg
The total moment of inertia of the both ladder and artist ,I
![I=\dfrac{mL^2}{3}+ Mr^2](https://tex.z-dn.net/?f=I%3D%5Cdfrac%7BmL%5E2%7D%7B3%7D%2B%20Mr%5E2)
Here![r=\dfrac{L}{2}](https://tex.z-dn.net/?f=%20r%3D%5Cdfrac%7BL%7D%7B2%7D)
![I=\dfrac{mL^2}{3}+ M\dfrac{L^2}{4}](https://tex.z-dn.net/?f=I%3D%5Cdfrac%7BmL%5E2%7D%7B3%7D%2B%20M%5Cdfrac%7BL%5E2%7D%7B4%7D)
![I=\dfrac{6\times 2^2}{3}+ 42\times \dfrac{2^2}{4}\ kg.m^2](https://tex.z-dn.net/?f=I%3D%5Cdfrac%7B6%5Ctimes%202%5E2%7D%7B3%7D%2B%2042%5Ctimes%20%5Cdfrac%7B2%5E2%7D%7B4%7D%5C%20kg.m%5E2)
I=50 kg.m²
The angular frequency f given as
![f=\dfrac{1}{2\pi}\times\sqrt{ \dfrac{m_t\ g D}{I}}](https://tex.z-dn.net/?f=f%3D%5Cdfrac%7B1%7D%7B2%5Cpi%7D%5Ctimes%5Csqrt%7B%20%5Cdfrac%7Bm_t%5C%20g%20D%7D%7BI%7D%7D)
Here ![m_t= m +M](https://tex.z-dn.net/?f=m_t%3D%20m%20%2BM)
![D=\dfrac{L}{2}\ m](https://tex.z-dn.net/?f=D%3D%5Cdfrac%7BL%7D%7B2%7D%5C%20m)
![D=\dfrac{2}{2}\ m](https://tex.z-dn.net/?f=D%3D%5Cdfrac%7B2%7D%7B2%7D%5C%20m)
D=1 m
![f=\dfrac{1}{2\pi}\times\sqrt{ \dfrac{(42+6)\times 9.81\times 1}{50}}\ s^{-1}](https://tex.z-dn.net/?f=f%3D%5Cdfrac%7B1%7D%7B2%5Cpi%7D%5Ctimes%5Csqrt%7B%20%5Cdfrac%7B%2842%2B6%29%5Ctimes%209.81%5Ctimes%201%7D%7B50%7D%7D%5C%20s%5E%7B-1%7D)
f= 0.48 s⁻¹
Answer:
A
Explanation:
But global warming will have additional, far-reaching effects on the planet. Warming modifies rainfall patterns, amplifies coastal erosion, lengthens the growing season in some regions, melts ice caps and glaciers, and alters the ranges of some infectious diseases.
20 m/s is the answer this is due to displacement over change in time. Thus 200/10=20