A car of mass M is moving with a uniform velocity `upsilon` on a horizontal road when the hero of a Hindi film drops himself on it from above. Taking the mass of the hero to be m what will be the velocity of the car after the event?

Explanation

To solve the problem of finding the velocity of the car after the hero drops onto it, we can use the principle of conservation of linear momentum. Here's a step-by-step solution:

### Step 1: Understand the initial conditions
- The mass of the car is \( M \).
- The initial velocity of the car is \( v \).
- The mass of the hero is \( m \).
- The initial velocity of the hero in the horizontal direction is \( 0 \) (since he is dropping vertically).

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