What is Relativistic Kinetic Energy? Why can no object travel faster than the speed of light, no matter how much energy you provide?

These are the questions I try to answer in today's video. First we will discuss the mass energy equivalence principle. Then we will talk about relativistic energy, mass and relativistic kinetic energy. I will show how the Relativistic kinetic energy can be approximated to Newtonian kinetic energy under low velocity approximations. Using Work energy theorem we can obtain the energy needed to accelerate an object to the speed of light. As it turns out we need to provide infinite energy to accelerate an object to light speed; which simply means that the speed of light is a speed barrier in our Universe. Nothing can reach the speed of light (except massless particles)

00:00 Relativistic Kinetic Energy
09:19 Why can nothing travel faster than light?

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PLAYLIST ON Special Theory of Relativity
   • Special Theory of Relativity  
-----------------------------------------------------
1. History of Special Relativity ►    • History of Special Relativity (Part 1...  
2. Michelson Morley Experiment ►    • Michelson Morley Experiment - History...  
3. Special Theory of Relativity ►    • Special Theory of Relativity  
4. Time Dilation (Thought Exp) ►    • What is Time Dilation?  (Thought Expe...  
5. Length Contraction (Thought Exp) ►    • What is Length Contraction? (Thought ...  
6. Lorentz Transormations ►    • Derive Lorentz Transformations  
7. Relativity of Simultaneity ►    • Relativity of Simultaneity (Thought E...  
8. Can you prove E=MC² ►    • Can you PROVE the most Famous Equatio...  
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9. Special Theory of Relativity ►    • Special Theory of Relativity (LECTURE...  
10. Length Contraction ►    • Length Contraction (Special Theory of...  
11. Length Contraction of Inclined Rod ►    • Length Contraction (& Angle) of Incli...  
12. Time Dilation ►    • The Mind Bending Prediction of Relati...  
13. Muon Decay Experiment ►    • The Mind-Blowing Proof of Time Dilati...  
14. Relativistic Velocity Transformations ►    • Derivation of Relativistic Velocity T...  
15. Speed of light in moving medium ►    • Speed of Light in a moving Medium - I...  
16. Relativistic Doppler Effect ►    • What is Relativistic Doppler Effect ?...  
17. Relativistic Mass? ►    • What is Relativistic mass? & DERIVATI...  
18. Relativistic Kinetic Energy ►    • Relativistic Kinetic Energy: Simplifi...  
19. Relativistic Force ►    • Relativistic Force  
20. Relativistic Energy & Momentum ►    • Relativistic Energy and Momentum: Exp...  
21. Magnetism arises from Relativity ►    • The Hidden Connection - How Magnetism...  
22. GATE Physics question ►    • GATE Physics: Problem on Special Rela...  
23. TIFR Physics question ►    • TIFR Physics: Problem on Special Rela...  
24. Question on Volume contraction ►    • Volume Contraction in Special Relativity  
25. JEST Physics question ►    • JEST Physics: Solving a Special Relat...  
26. NET Physics question ►    • CSIR-NET Physics Problem: Relativisti...  
27. Spacetime Invariant Interval ►    • SPACETIME Interval & it's Physical Si...  
28. Minkowski Spacetime ►    • Minkowski SPACETIME, Hyperbolic Geome...  
29. Eucledian Space & Minkowski Spacetime ►    • 5 Main Differences b/w Euclidean GEOM...  
30. Spacetime Diagrams ►    • Time Dilation, Length Contraction & V...  
31. Four Vectors in Relativity ►    • What are FOUR VECTORS in Special Rela...  
32. Doppler Effect using 4-vectors ►    • How to use 4 VECTORS to prove Relativ...  
33. Compton Effect using 4-vectors ►    • How to prove Compton effect using 4-V...  
34. Particle Decay using 4-vectors ►    • Particle Decay in Relativity | Relati...  
35. (SHORTS) Does Light experience time ►    • Does light photon experience TIME? #s...  
36. (SHORTS) Light for moving observer ►    • What is the speed of Light for a movi...  
37. (SHORTS) Nothing can travel faster than light ►    • Why nothing can travel faster than th...  
38. (SHORTS) What is farther away ►    • What is farther away, 1metre in space...