according to special theory of relativity the density of a moving object should
A)increases only
B)decreases only
C)increase and then decrease
D)remain same
Answers
Answer:
a) increase only
Explanation:
What happens is mass increases or decreases directly in line with velocity… That is, the size of the object moving becomes contracted or or less contracted as the speed increases and decreases. It doesn’t gain mass. It just has the same mass in compacted to a smaller area. And it’s not just length contraction but total shrinkage. And frame speeds are what does this. Everything in a frame will seem in proportion so there is different nothing noticed within the frame…
But the big thing is that all such observations must be *only* be made by the outside observer. That observer is the *only* POV that is not moving. The only POV that can see everything else moving around it.., and who can see the relative speeds of each of them. To look at one moving object from another moving object is totally deceiving and it is how all relativity paradox’s are caused.
The ladder and the barn for instance. The ladder speeding towards the barn that is too short to hold it. But the ladder becomes shorter the faster it travels.., so at the point where it is passing through the barn it does fit…
Now if one were to put themselves on the ladder they would see the barn coming at the ladder at high speed and it would appear to be smaller too. That’s an illusion because the ladder frame would see itself not moving and the barn moving. But in reality the ladder is still the one that is moving and not the barn… As only the outside observer can see properly.
Never switch POVs in the middle of a situation. All that does is create ‘apparent’ paradox’s. :) But they’re not really.
hope this will help you