Mass of man = 40kg
Mass of fireman = 80 kg
To find :
The acceleration of the fire man
Solution :
- Maximum Tension = 100×9.8
- The total weight of persons = 120×(g-a)
- The total weight should not exceed maximum tension
120×(9.8-a) = 100×9.8
- By solving the above equation a = 1.63 m/s²
The acceleration of the fire man is 1.63 m/s²