Two objects of masses `100g` and `200g` are moving along the same line in the same direction with velocities of `2m//s` and `1m//s`, respectively. They collide and after the collison, the first object moves at a velocity of `1.67 m//s` in the same direction. Determine the velocity of the second object.

Explanation

To solve the problem, we will use the principle of conservation of linear momentum. The momentum before the collision is equal to the momentum after the collision.

### Step-by-Step Solution:

1. **Identify the Given Data**:
- Mass of the first object (m1) = 100 g = 0.1 kg (since 100 g = 100/1000 kg)
- Mass of the second object (m2) = 200 g = 0.2 kg (since 200 g = 200/1000 kg)
- Initial velocity of the first object (u1) = 2 m/s
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