Physics - NLM Question with Solution | TestHub

Let $T$ be the tension in the cable supporting the lift.

The forces acting on the lift are the tension $T$ upwards and the weight $mg$ downwards.

Using Newton's second law of motion for the lift moving upwards with acceleration $a$:

$T-mg=ma$

$T=m(g+a)$

Substituting the given values $m=200\mathrm{kg}$, $g=10{m/s}^2$, and $a=4{m/s}^2$:

$T=200(10+4)$

$T=200\times 14$

$T=2800\mathrm{N}$

Answer: 2800 N