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Grade: 11

                        

Three identical balls are placed on a frictionless horizontal surface touching each other they stick to each other because of aggressive another ball of same radius and mass M is placed over the white created by three balls find the force applied by the balls kept on the floor to each other if the system remains in equilibrium

9 months ago

Answers : (2)

Arun
25089 Points
							
As ball B moves towards ball C, so first collision is between ball B and C.
After collision
let vB and vC is speed of ball B and C and are given as vB=(mB−mcmB+mc)vvc=(2mBmB+mc)v     As mc=4mb that is  mc>4mb
from above equations we can say that  has negative signthat after this collision ball B will move in opposite direction towards ball A and ball C will move in right hanTherefore, ball B will make another collision with ball AHence in this case there will be two collisions.
9 months ago
Vikas TU
13786 Points
							
Dear student 
horizontal surface
center one of the balls
line joining centers of any two balls
point of intersection of medians
Good Luck 
8 months ago
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