Answer:
Explanation:
1 )
Put v2,i =0, in second equation
v2,f= (m2-m1)v2,i + 2m1v1,i/m1+m2
v2,f = 0 + 2m1v1,i/m1+m2
v2,f = 2m1v1,i/m1+m2
In this equation coefficient of v1,i is positive so v2,f and v1,i have the same sign.
2 )
Put m1 < m2 and v2,i =0 in first equation
v1,f= (m1-m2)v1,i + 2m2v2,1/m1+m2
v1,f= (m1-m2)v1,i
As m1-m2 is negative , v1f and v1i will have opposite sign.
3 )
Put m1 > m2 and v2,i =0 in first equation
v1,f= (m1-m2)v1,i + 2m2v2,1/m1+m2
v1,f= (m1-m2)v1,i
m1 - m2 is positive so v1f and v1i will have same sign.
4 )
Put m1 = m2 and v2,i =0 in first equation
v1,f= (m1-m2)v1,i
= 0 because m1 = m2
So glider 1 will stop because v1,f = 0 .
