Question

Question 1
A F
+ 4
1
A disk A of radiusr moving on a perfectly smooth surface at a speed v undergoes an elastic collision with an identical
stationary disk B. Find the velocity of the disk A after a collision if the impact parameter is 1/2 as shown in the figure.
D
B
<
1/2
O VIS
O
7
n​

Answer 1

Answer: check the below

√4v  

v4

v2

3–√v2

Answer :

A