Question

A person of mass $60kg$ is inside a lift of mass $940kg$ and present the button of control panel. The lift starts moving upwards with an acceleration $1.0m/s^2$ . If $g=10m{s}^{-2}$ , the tension in the supporting cable is -

Answer 1

The tension in the string is given as follows

$T=m\left(g+a\right)$

By substituting the values of mass and acceleration given in the question we get

$T=1000\times \left(10+1\right)$

$=11000N$

Hence, the tension in the string is$11000N$