^Non-conservative force
^Non-conservative force Friction, viscous drag. Mechanical energy is dissipated.
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^Conservative forces
^Conservative forces Gravitational, electromagnetic & spring. Mechanical energy (= K + U) is conserved.
^Pendulum in accelerated frame
^Pendulum in accelerated frame Suppose a simple pendulum is hanging in a truck speeding up horizontally tight side with acceleration […]
^Weight in a lift
^Weight in a lift Consider a person 1 of mass m (true weight, mg) standing on a weighing scale placed […]
^A horizontal rod pulled
^A horizontal rod pulled
^A block hanging on two strings
^A block hanging on two strings
^A block hanging on two strings
^A block hanging on two strings
^Tension, T
^Tension, T Restoring force developed in wires, sheets & rods is called tension force. It is equals to reaction of […]
^Lemi’s theorem
^Lemi’s theorem It is used to solve situations based on Equilibrium of three concurrent coplanar forces. Let F1, F2 & […]
^Static equilibrium
^Static equilibrium A body at rest is called static equilibrium. However momentary rest is not equilibrium. e.g. a projectile at […]
