It is derived because you can not determine the rate of speed it will always be because any amount of sheer force can be applied to it.
Answer:
When an air particle bombards a smoke particles, the smoke particle moves to the same direction as the air particle that hit it. When another air particle hits the smoke particle, it changes its direction to that of the second air particle, and so on. This is called Brownian motion.
Answer:
Pluto's orbit brings it inside the orbit of <u>Neptune</u>.
Answer:
Explanation:
As we know that tension force in the string will be equal to the centripetal force on the string
so we will have
now we have
now we have
now when string length is 0.896 m and its speed is 71.5 m/s then we will have