A man can jump `2.0 m` high on the earth. Up to what height he can jump on a planet whose density is one quarter that of Earth and radius in one-third of the Earth's radius.

Explanation

To solve the problem, we need to determine how high a man can jump on a planet with different gravitational conditions compared to Earth.

### Step-by-Step Solution:

1. **Understanding the Jump Height on Earth**:
The height a man can jump on Earth (He) is given as 2.0 m. This height is determined by the gravitational acceleration (g) on Earth.

2. **Gravitational Acceleration on Earth**:
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