A pails of mass 10 kg is attached vertically to a pulley so that it can be lifted. The pail is lifted 7 meters how much work was done on the

0 thoughts on “A pails of mass 10 kg is attached vertically to a pulley so that it can be lifted. The pail is lifted 7 meters how much work was done on the”

1. Answer: 686 joules

   Explanation:

   Given that,

   mass = 10 kg

   distance = 7 meter

   Work done on the pail = ?

   Recall that work is done when force is applied on an object over a distance.

   i.e Work = Force x distance (h)

   (since force = mass x acceleration due to gravity (g))

   Work = mgh

   Work = 10kg x 9.8m/s^2 x 7m

   Work = 686 joules

   Thus, 686 joules of work was done on the pail.

   Reply