A girl of mass 25 kg running with a speed of `1*5 m/s` jumps on a skateboard of mass 2 kg kept on a surface . What will be their combined velocity ?

Explanation

To solve the problem of finding the combined velocity of a girl and a skateboard after the girl jumps onto the skateboard, we can use the principle of conservation of momentum. Here’s a step-by-step solution:

### Step 1: Identify the masses and initial velocities
- Mass of the girl (m1) = 25 kg
- Velocity of the girl (v1) = 1.5 m/s
- Mass of the skateboard (m2) = 2 kg
- Velocity of the skateboard (v2) = 0 m/s (since it is at rest)

...