Answer:
Force = 8.0 k g m / s
Explanation:
Force = mass x acceleration
Mass = 4.0 k g Acceleration = 2.0 m / s 2
Hence,force = ( 4.0 x 2.0 ) k g m / s 2 = 8.0 k g m / s 2
Answer:
The period of 6/7 seconds or 0.857 seconds.
Explanation:
The period of any given trigonometric function is given by:
![y=a cos(bx+c)d\\\\Period:\\\\T=\frac{2\pi }{b}](https://tex.z-dn.net/?f=y%3Da%20cos%28bx%2Bc%29d%5C%5C%5C%5CPeriod%3A%5C%5C%5C%5CT%3D%5Cfrac%7B2%5Cpi%20%7D%7Bb%7D)
In this function b is ![\frac{7\pi }{3}](https://tex.z-dn.net/?f=%5Cfrac%7B7%5Cpi%20%7D%7B3%7D)
So, the period for the given function is calculated as follows: