Is work done by gravity and work done against gravity same? What is difference??

Whenever a force is applied to an object, causing the object to move, work is done by the force.If a force is applied but the object doesn't move, no work is done. Work can be either positive or negative: if the force has a component in the same direction as the displacement of the object, the force is doing positive work. If the force has a component in the direction opposite to the displacement, the force does negative work. Consider a falling object, here force applied on object is due to gravity towards earth and the displacement of object is in the same direction as that of force applied. Hence the work is done by gravity and is positive. consider a rocket, when it is launched, the force here is thrust which works against gravity and pushes the rocket up wards. So the force applied here is in downward direction and the displacement is in upward direction. read less