the conservation of angular momentum applied to Earth as well right? but doesn't Earth's rotation go through seasonal variations, is the angular momentum still conserved?
a sphere and a hoop both of same mass (e.g. 'm') roll down an inclined plane without slipping...which will get to the bottom first..will they have equal kinetic energies when they reach the bottom?
In what kind of cases do u we formulate the equation type x=Asin(wt+phi) or x=Acos(wt+phi)...and if for example we use it to define the position of some thing in motion when do we know when to use cos and when to use sin...?
an explanation stated that when its going up, the air resistance is in the same direction as the weight(mg) acting, and when its going down, the air resistance is in the opposite direction as that of the of the weight(mg)..thus in the second half of the motion (that is when its coming down) the...
when we r considering a ball that is thrown at 45 angle, with the air drag present, why does it take longer to fall back after reaching its highest point?
i came over the terms 'inertial' and 'non-inertial' frames during the study of rotational motion...pls clarify the difference...! plus can anyone give me a link from where i can practice numericals of angular momentum, moment of inertia, torque..