Intext example II — task. Science CBSE, Class 9.

PDF chapter test TRY NOW

A porter lifts a luggage of \(15\ kg\) from the ground and puts it on his head \(1.5\ m\) above the ground. Calculate the work done by him on the luggage.

Formula to calculate the work done is,

\(Work\ done\ =\ Force\ (F)\ \times Displacement\ (s)\)
\(Work\ done\ =\ \frac{Force\ (F)}{Displacement\ (s)}\)
\(Work\ done\ =\ \frac{Displacement\ (s)}{Force\ (F)}\)

\(Work\ done\ =\ \frac{s}{m \times g}\)
\(Work\ done\ =\ \frac{m \times g}{s}\)
\(Work\ done\ =\ m \times g \times s\)

Substitute the values of \(m\), \(g\) and \(s\) in the formula,

Work done by a porter on the luggage \(=\) \(J\)

Previous exercise

Exit to the topic

Next exercise

Send feedback

Did you find an error?

Send it to us!

20. Intext example II

Exercise condition: