A stone is dropped from a balloon going up with a uniform velocity of 5.0 m/s. If the balloon was 50 m high when the stone was dropped, find its height when the stone hits the ground. Take `g=10 m/s^2`.

Explanation

To solve the problem step by step, we will analyze the motion of the stone and the balloon separately.

### Step 1: Understand the initial conditions
- The stone is dropped from a balloon that is 50 meters above the ground.
- The balloon is moving upwards with a uniform velocity of 5.0 m/s.
- The acceleration due to gravity (g) is 10 m/s².

### Step 2: Determine the initial velocity of the stone
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