Question

two objects of masses 100 gram and 200 grammar moving along the same line interaction with velocities of 2 and as -1 and 1 and -1 respectively they collide and after the collision the first object move at a velocity of 1.67 M S - 1 determine the velocity of the second of the answer in short

Answer 1

in this case applying the conservation of linear momentum we can write that ,

(1001000×2)+(2001000×1)=(1001000×1.67)+(2001000×v)⇒0⋅2+0⋅2=0⋅167+0⋅2v⇒v=0⋅4−0⋅1670⋅2=0⋅2330⋅2⇒v=1⋅165 m/s