A boy weighs 50kg runs up a set of steps of total height. Find the work done against gravity
AAAaannndd the bot gets it wrong yet again!
work = force * distance, not mass * distance
work = mgh
The work done against gravity is equal to the boy's weight multiplied by the height of the steps.
Work = 50kg x height of steps
Therefore, the work done against gravity is 50kg x height of steps.