Potential work = gravitational potential energy = mass x gravity x height = 20 x 9.8 x 10 = 1960 J or 1.96 kJ
48.6
Work = (force) x (distance) = (10) x (4) = 40 joules
work is equal to a change in energy. in this case there is a change in potential energy. potential energy = mass x gravity x height E(p)=mgh E(p)= 3x9.8x40 E(p)=1176 J thus there is a change in potential energy of 1176 joules and since W=change E(p) Work done is 1176 J
Use the formula for potential energy: PE = mgh (mass x gravity x height). Since you are using SI units, use 9.8 for gravity.
If we can neglect friction and the inefficiency of human physical effort, thenthe length of the ramp doesn't matter. In rising 5 meters, the barrel gainsm g h = (40) (9.8) (5) = 1,960 joules of potential energy,so that's the work required to lift it to that height, no matter the route ormethod selected.
Use the formula for gravitational potential energy (mgh).
48.6
the work performed is the weight of the block times the height, or rise, of the incline
Gravitational potential energy is equal to mass x gravity x height. Changing either the mass or the height will work.Gravitational potential energy is equal to mass x gravity x height. Changing either the mass or the height will work.Gravitational potential energy is equal to mass x gravity x height. Changing either the mass or the height will work.Gravitational potential energy is equal to mass x gravity x height. Changing either the mass or the height will work.
It is the same - work done is weight x height and potential energy change is the same at the new height
Work = (force) x (distance) = (10) x (4) = 40 joules
As we lift a body of mass m from ground level to a height h, then work performed will be mgh which is equal to the difference in gravitational potential energy at the ground level and at that height.
The potential energy of the book on the shelf is equal to the work done to lift the book to the shelf. This is because the potential energy of an object at a certain height is equivalent to the work done against gravity to lift it to that height.
(Mass) x (acceleration of gravity) x (height) = (3.7) x (9.8) x (2.2) = 79.772 joules
That depends how high you lift it.The work is mgh (mass x gravity x height). If the mass is in kilograms, gravity is in newton/kilogram (Earth gravity is about 9.8 newton/kilogram), and the height is in meters, then the work will be in joules.
because the work done in placing that object at a height is stored in it as the potential energy....
Potential energy and gravitational potential energy are different from each other ."Potential energy is the ability of a body to do work." Anddue_to_its_height.%22">"Gravitational potential energy is the ability of a body to do work due to its height."Gravitational potential energy is a type of potential energy.