"The position vector of a particle of mass 3kg is given by r(vector)= 4i+3t^2j, where r is in meters and t is in seconds. Determine the angular momentum and torque acting on the particle about the origin."
But, It might be better to make a new thread titled "Chemistry Game" anyways...
Not studied Rotational Mchanics yet, but have a bit of knowledge.
Is the torque equal 72Nm and angular momemtum equals 72t Js.
Oh, damn once again......I just forget to write direction, my habit is bad. Anyway, we get that using thumb rule.
My Question from Mechanics::
What minimum force has to be applied on the 3kg block horizontally to cause relative motion in all three blocks.
Well, you are right, all blocks must have different acceleration. But yes, I want minimum force. So when that force is applied then the acceleration of blocks will be somehow similer, I mean tend to be equal.
So just draw FBD's of all three blocks, get the acceleration, put your concept of static and kinetic friction.
Okay, so, from now on let's assume that g = 10 unless stated otherwise.
Here's a problem:
A faucet is turned on; its spout faces straight downwards. It has radius 0.5 cm, and a 0.5 cm radius stream of water flows out of it at a velocity of 2 m/s. What's the radius of the stream 50 cm below the faucet?