Physics

Gravitational potential at a point is defined as the amount of work done in moving unit mass from the point to infinity against the gravitational…

Two masses separated by a distance exert gravitational forces on one another. This is called action-at-a-distance. They interact even though they are not in contact.…

Consider a body of mass m on the surface of the Earth as shown in the Figure. Its distance from the centre of the Earth…

Galileo was the first to make a systematic study of the motion of a body under the gravity of the Earth. He dropped various objects…

Special features of the law (i) The gravitational force between two bodies is an action and reaction pair. (ii) The gravitational force is very small…

The law of conservation of angular momentum states that when no external torque acts on an object, no change of angular momentum will occur. Angular…

The angular momentum of a rotating rigid body is, L = I ω The torque acting on a rigid body is, τ = dL/dt When…

Let consider a system of n particles of masses m1, m2 … …mn situated at distances r1, r2 … …r3 respectively from the axis of…

The angular momentum in rotational motion is similar to the linear momentum in translators’ motion. The linear momentum of a particle moving along a straight…

Torque is an appraise of the force that can reason an object to rotate about an axis. It is a vector quantity. The path of…