A block of mass m moving at a velocity `upsilon` collides head on with another block of mass 2m at rest. If the coefficient of restitution is 1/2, find the velocities of the blocks after the collision.

Explanation

To solve the problem step by step, we will use the principles of conservation of momentum and the definition of the coefficient of restitution.

### Step 1: Understand the Problem
We have two blocks:
- Block 1 (mass = m) moving with velocity \( v \)
- Block 2 (mass = 2m) at rest (velocity = 0)

The coefficient of restitution (e) is given as \( \frac{1}{2} \).
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