Answer:
4704 Joules
Explanation:
We are given;
- Mass of the firefighter is 80 kg
- Height of the stairs is 6 m
Assuming we are required to calculate the work done by the firefighter;
- Work done is the product of force and distance.
- Work done = Force × distance
We are given mass as 80 kg
But, 9.8 N = 1kg
Therefore,
Force = 80 kg × 9.8 N/kg
= 784 N
Therefore,
Work done = 784 N × 6 m
= 4704 Joules
