Graphically show the variation of potential energy of a freely falling body.
The potential energy of a freely falling body increases as the height from the ground increases.
PE=mghwheremismasshisheightfromgroundgisgravity
Show that the sum of kinetic energy and potential energy(i.e., total mechanical energy) is always conserved in the case of freely falling body under gravity (with air resistance neglected) from a height h by finding it when (i) the body is at the top, (ii) the body has fallen a distance x, (iii) the body has reached the ground.
1.Define P.E? write its relation and SI unit.
2.How much % variation in K.E seen when the momentum of a body is doubled?
3.derive the relation for potential energy.
4.How much work done by our earth in going around the sun once? Give reason.
5.The height of qutbminar is 75m.How much work done when a 50kg man reach the top?
6.factors affecting the escape velocity.
7.graphically show the variation of P.E and K.E of a freely falling body
In a freely falling body, the interchange of potential to kinetic energy takes place _______.
In a freely falling body, the interchange of potential to kinetic energy takes place: