Question:
Is the speed of shadow faster than the speeed of light?
dsldragon2002
2006-08-30 03:34:59 UTC
As you move past a light source, your shadow moves based on your relative position to the light source with the far end of your shadow covering more distance than the base. If you were moving at the speed of light, the end of your shadow would be moving faster.
Six answers:
Stewart H
2006-08-30 06:38:45 UTC
Consider a point source of light that is stationary and an object some distance from it that is casting a Shadow on a surface.

The object has and angular velocity when viewed from the light source. The edge of the Shadow will also have an angular velocity when viewed from the source. The angular velocity of the Shadow will be the same as that of the object but, because it is further away, will have a linear speed over the surface that is greater than the linear speed of the object. The edge of the Shadow may well appear to move faster than the speed of light but there is no energy or information moving faster than light so all is well with the universe.
ixat02
2006-08-30 03:44:33 UTC
a shadow can move faster than the speed of light, because it is not an object that is moving but only the image of an object. just like the speed of a light spot from a lighthouse on the surface of the sea.
bremmer
2016-11-23 19:11:45 UTC
if I actual have understood the question precise, this is a paradox it ought to in simple terms look to move a significantly better distance interior of a similar time to observers on the floor the shaddow to the persective of the chicken ought to look typical, yet when the shaddow changed into vacationing at a swifter % than the chicken then it ought to arrive on the proper of the wall before the chicken had were given there - that can be inconsistant. In each and each attitude not something has replaced and in view that the shadow's passing is in simple terms the blocking off of the mild then its said "% of holiday" is affected in simple terms by using the attitude at which the shadow is oberved from, and the attitude of insidence to the floor, the actual "collum" shaddow is vacationing with the chicken. i am hoping this makes sence. as to the 2d area- ought to thoughts be despatched this kind im not sensible because it must be very inpracticle to examine yet maby this can be an excellent experiement for exmple you ought to set up the experement as you're saying in a room and a wall that's filmed at a short fillm rated as a rushing bullet passes between it and a mild source to visual demonstrate unit the phenomon more beneficial heavily, then this can provide posible idears as to the appliance.
sherlock k
2006-08-30 03:51:29 UTC
well nething that you see has to be at the speed bof light!!! it is the light that helps you See. So irrespective of weather the object is moving faster than light you can only see it move slower than light! But speed of shadow will be dependent on two things "SOURCE OF LIGHT" and "OBJECT". The speed if the shadow is propotional to the relative speed of the two(rather velocity). But of-course neither can move at the speed of light, So obviously speed of shadow cannot be faster than that of light.
bakbiter
2006-08-30 03:38:43 UTC
sorry nice try. the shadow can only move as fast as the object casting a shadow. and when you get to the speed of light, it eliminates all shadows.
2006-08-30 03:37:43 UTC
really


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