Answer:u=42.29 m/s
Explanation:
Given
Horizontal distance=167 m
launch angle![=33.1^{\circ}](https://tex.z-dn.net/?f=%3D33.1%5E%7B%5Ccirc%7D)
Let u be the initial speed of ball
Range![=\frac{u^2\sin 2\theta }{g}](https://tex.z-dn.net/?f=%3D%5Cfrac%7Bu%5E2%5Csin%202%5Ctheta%20%7D%7Bg%7D)
![167=\frac{u^2\sin (66.2)}{9.8}](https://tex.z-dn.net/?f=167%3D%5Cfrac%7Bu%5E2%5Csin%20%2866.2%29%7D%7B9.8%7D)
![u^2=1788.71](https://tex.z-dn.net/?f=u%5E2%3D1788.71)
![u=\sqrt{1788.71}](https://tex.z-dn.net/?f=u%3D%5Csqrt%7B1788.71%7D)
![u=42.29 m/s](https://tex.z-dn.net/?f=u%3D42.29%20m%2Fs)
C the correct but not sure?
Answer:
16 m/s^2
Explanation:
acceleration tangential = (v^2)/r
a=400/25
a=16 m/s^2
Side note: next time, be more specific when asking about acceleration in circular motion. There's more than one type! Example:
angular acceleration=acceleration tangential/r
angular acc.=16/25
angular acc.=0.64 rad/s^2
It is located through seven countries in South America which are Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile and Argentina. This is the Andes Mountains which is about 7000 km long. This is known as the world's longest mountain range.