let us study work energy equation for rigid bodies. as we have already studied . for rigid bodies. we can simply state these can never be deformed, rigid means, these can never be deformed . rigid bodies can contain only ki-netic energy elastic potential energy can never be stored in these. so , independently in […]

dear students, let us study law of conservation of momentum now as we have already studied in the previous chapter , about system of particles, for a system of particle we have studied that velocity of centre of mass , of a system of particle can be given by , total momentum of system divided […]

[Gasps] Was it — that was it, wasn’t it? I think we’ve been doing it so long we don’t know what perfect looks like [Laughs] What’s up, I’m Destin. I do not even know how to start this video I’ll just try to explain it and — I mean, this is a huge deal. Five […]

in this example we are given that a ball with a speed 9 meters per sec strikes, another identical ball at rest such that after collision, the direction of each ball makes an angle 30 degree with the original line of motion, and here we are required to find the speed of the two balls […]

How do you picture an atom in your mind – like this, or like this, or maybe one of these? If you understand enough about atoms to visualize any of those things, then you know more about atomic theory than scientists did just 100 years ago. And, like, WAY more than they thought they knew […]

let’s discuss about conservation of angular momentum in satellite motion. we know well that, in motion of a satellite, around a planet, we can say the only force acting on satellite is the gravitational force, only force on it, is gravity. and that too directed towards the center of the planet, we say only force […]

this example says that a figure shows a spring block system , on which time varying force , 5 t is applied on two k g mass, and after ten sec velocity of three k g mass is observed to be thirty meters per sec, we are required to find velocity of two k g […]