A man picks up a mass of 1 kg to a height of 1 meter. What is the work done by the man?

20 J

15 J

10 J

None of these

Work done $W$ is calculated using the formula $W = mgh$ , where $m$ is mass, $g$ is acceleration due to gravity (9.8 m/s²), and $h$ is height.

W = 1 times 9.8 times 1 = 10 , text{J}