A body of weight 10N is lifted from the floor to a table 2m above the floor.calculate the potential energy gained. What happens to the energy if the body falls off the table and hits the floor
To calculate the potential energy gained when lifting the body, you can use the formula:
Potential Energy = Weight × Height
Given that the weight of the body is 10N and the height is 2m, we can substitute these values into the formula:
Potential Energy = 10N × 2m
Potential Energy = 20 Joules
Therefore, the potential energy gained when lifting the body to the table is 20 Joules.
If the body falls off the table and hits the floor, the potential energy is converted into kinetic energy as it falls. Kinetic energy is the energy of motion. The potential energy is converted into kinetic energy because energy is always conserved.
When the body falls, its potential energy is continuously decreasing while its kinetic energy is increasing. At the moment it hits the floor, all the potential energy is converted into kinetic energy. Therefore, the potential energy gained when lifting the body is completely transformed into kinetic energy as it falls and hits the floor.