what if i am riding one of the light beams ?
in other words if i am riding one of the beams that moves in the same direction of another beam what will be the speed of the other beam ?
here "c" is the speed of light ,
i have a question in my mind and i have no answer for it ,
if two light beams are moving in opposite directions then their relative speed is simply c using the law of velocities addition in case of special relativity
but what if those two light beams are moving...
for a disck rolling on a horizontal plane the kinetic energy should be the kinetic energy of the CM of the disk with respect to the origin plus the kinetic energy due to the rotation of the disc about his CM
so T= 1/2 (M V^2) +1/2(I ω^2)
where M is the mass of the disk and V is the velocity of...
the question is : particles m1 and m2 each of mass m are connected by a massless rod with length l , these particles move on a frictionless horizontal plane as shown in the screen shot , the movement of m1 is fixed on a frictionless circular track of radius R , find the E.O.M !
Homework...
am deriving lagrange's equation can anybody help me to understand this identity
the book says that he is using the chain rule for it but am not getting it
d/dt(∂x/∂q)
the identity is in the screen shot
thanks :)
hello guys
i like physics specially the classical dynamics but am finding it hard to understand those letters (i , j ) now am studying about the generalized forces corresponded with generalized coordinates
and there is an equation in the attached pic with this thread
can anybody help me and...
hello :)
my question is about a solved example in gregory's book
first of all , assuming that that a cylinder with radius "a" is rolling without slipping towrad the y direction in an incline plane
with angle θ with the horizon and the cylinder him self is rotating with angle Φ about him self...