Question

The strings of a parachute can bear a maximum tension of $75kg$-weight. By what minimum acceleration can a person of $96kg$ descend by means of this parachute ?

Answer 1

Given that,

Tension $T=75kg$

Mass$m=96kg$

We know that,

$mg-T=ma$

$a=\frac{mg-T}{m}$

$a=\frac{96\times 9.8-72\times 9.8}{96}$

$a=\frac{940.8-705.6}{96}$

$a=2.45m/s^2$

Hence, the Person should descend by acceleration is $2.45m/s^2$