Question

Ques is in the attachment

Answer 1

Answer:By momentum conservation

m1u1=m2v2−m1v1

v2+v1/0+u1 =e=1  

v2+v1=u1

∴m1(v2+v1)=m2v2−m1v1

m1(v2+2v1)=m2v2   v1=v2=v

m1/m2=v/3v

=1/3

Explanation: