# How much work would it take to push a  5 kg  weight up a  2 m  plane that is at an incline of  pi / 3 ?

Aug 10, 2018

I got: $85 J$
the work done $W$ will be done against gravity to lift the weight at a height $h = 2 \sin \left(\frac{\pi}{3}\right)$, so we get that:
$W = m g \cdot h = \left(5 \cdot 9.8\right) \cdot \left[2 \sin \left(\frac{\pi}{3}\right)\right] = 84.87 \approx 85 J$