PH-1424

Resultant force and F = ma

Physics · Secondary 4 · Hard · Resultant force and F = ma

A 600 kg lift is moving upwards. The cable pulls up with a force of 5400 N while the weight of the lift is 6000 N. What is the acceleration of the lift, and in which direction?

$0.90\,\text{m s}^{-2}$ upwards
$1.0\,\text{m s}^{-2}$ upwards
$0.90\,\text{m s}^{-2}$ downwards
$1.0\,\text{m s}^{-2}$ downwards

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