Answer:
Explanation:
Let the vertical height by which it descends be h . Let it acquire velocity of v .
1/2 mv² = mgh
v² = 2gh
As it leaves the surface of sphere , reaction force of surface R = 0 , so
centripetal force = mg cosθ where θ is the angular displacement from the vertex .
mv² / r = mg cosθ
(m/r )x 2gh = mg cosθ
2h / r = cosθ
cosθ = (r-h) / r
2h / r = r-h / r
2h = r-h
3h = r
h = r / 3
Objects are known to go down because of a unbalanced force
using the law of refraction, the incidence is equal to the reflection, but not refraction
Answer:
false
Explanation:
every object will always have the force of gravity acting upon it.
Answer:
20 years Light.
Explanation:
There's no practical explanation just math's.
