A load of 100 kg is pulled up by 5 m. Calculate the work done. Take g=9.8 ms−2
5000 J
4900 J
4800 J
4700 J
Given, the mass of the object m=100 kg, height h=5 m and g=9.8 ms−2.
We know work done W=mgh
So, W=100×9.8×5=4900 J
A load of 100 kg is pulled up by 5 m. Calculate the work done. (g = 9.8m/s2)
Calculate the work done when a load of 100 kg is lifted up vertically by 5m. Given g = 9.8 m/s2.
A load of 220kg is vertically pulled up by a crane through a vertical height of 16m in 40s. Calculate the total work done.
[Take g=9.8ms2]