# With what minimum acceleration can a fireman slide down a rope whose breaking strength is 2/5th of his weight?1)1g2).4g3).6g4).8g

Eshan
4 years ago
Dear student,

When a person is sliding down,

$ma=mg-T$
$\implies T=mg-ma\leq \dfrac{2}{5}mg$
$\implies a\geq\dfrac{3}{5}g=0.6g$