Guest

Three identical balls are placed on a frictionless horizontal surface touching each other. They stick to each other because of adhesive. Another ball of same radius and mass m is placed on the void created by the three balls. Find the forces applied by the balls kept on the floor to each other if the system remains in equillibrium.

Three identical balls are placed on a frictionless horizontal surface touching each other. They stick to each other because of adhesive. Another ball of same radius and mass m is placed on the void created by the three balls. Find the forces applied by the balls kept on the floor to each other if the system remains in equillibrium.

Grade:11

1 Answers

Ansh Goyal
29 Points
4 years ago
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. So correct option is B.
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. So correct option is B. 
 

Think You Can Provide A Better Answer ?

ASK QUESTION

Get your questions answered by the expert for free