Question

A heavy body moving witha velocity 20m/s and another

Answer 1

as it is 20 m/ sec i hope this will help u ✌✌✌✌

Answer 2

m1u1 + m2u2 = m1v1+ m2v2

m1=2m

M2= m

U1= 6m/s

U2=0

Then 2m*6 + 0 = 2mv1+ mv2

Apply this formula involves the following

U1 - U2 = e(v2-v1)

Where e is coffeciant of restitution to more efficient way

For elastic collision e = 1

6 - 0 = v2-v1

Solving two equations

12= 2v1+v2

6= v2-v1

We get V1= 2m/s and V2= 8m/s