A girl of mass 35 kg climbs up from the first floor of a building at a height 4 m above the ground to the third floor at a height 12 m above the ground. What will be the increase in her gravitational potential energy? [`g=10ms^(-2)`]

Explanation

To find the increase in gravitational potential energy (GPE) of the girl as she climbs from the first floor to the third floor, we can follow these steps:

### Step 1: Identify the mass of the girl
The mass \( m \) of the girl is given as:
\[ m = 35 \, \text{kg} \]

### Step 2: Identify the acceleration due to gravity
The acceleration due to gravity \( g \) is given as:
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