Calculate the amount of work done in taking a packet of mass 100 kg to the top of a building of height 14.0 m. Take g = 10 m/s².

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Solution

Step 1: Given data
Mass of packet, $m = 100 k g$
Height of building, $h = 14.0 m$
Acceleration due to gravity, $g = 10 m / s^{2}$

Step 2: Calculating work done
When a body of mass $m$ is lifted to a height $h$ , work done is calculated as,
$W = m g h$
Substituting the given values in the above equation, we get,
$W = 100 k g \times 10 m / s^{2} \times 14 m W = 14000 W = 1.4 \times 10^{4} J$
Therefore, the amount of work done in taking a packet of mass 100 kg to the top of a building of height 14.0 m is $1.4 \times 10^{4} J$ .

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