query: What is the mechanism that restricts a body from accelerating past the speed of light?
positive_passages.docid: 142441
positive_passages.text: If rest mass does not change with $v$ then why is infinite energy required to accelerate an object to the speed of light?
negative_passages.docid: 55971
negative_passages.text: Why does the (relativistic) mass of an object increase when its speed approaches that of light?
negative_passages.docid: 6592
negative_passages.text: if a body is stopped by means other than friction, where does energy go?
negative_passages.docid: 475
negative_passages.text: Would time freeze if you could travel at the speed of light?
negative_passages.docid: 91385
negative_passages.text: Does quantum mechanics allow faster than light (FTL) travel?
negative_passages.docid: 54020
negative_passages.text: Does a moving object curve space-time as its velocity increases?
negative_passages.docid: 45613
negative_passages.text: Conservation of energy when slowing an object down
negative_passages.docid: 158216
negative_passages.text: Does warp drive permit safe, near- or above- lightspeed travel through atmospheres?
negative_passages.docid: 17446
negative_passages.text: How can you accelerate without moving?
negative_passages.docid: 115752
negative_passages.text: What are the limits of Energy-bending?
negative_passages.docid: 57773
negative_passages.text: About the speed of light and gravity
negative_passages.docid: 116728
negative_passages.text: Why does speed of light have to be constant?
negative_passages.docid: 22118
negative_passages.text: If all motion is relative, how does light have a finite speed?
negative_passages.docid: 70852
negative_passages.text: How exactly does time slow down near a black hole?
negative_passages.docid: 26363
negative_passages.text: How does faster than light travel violate causality?
negative_passages.docid: 31498
negative_passages.text: Will something accelerate forever if a constant force is applied to it on a frictionless surface? If so how?
negative_passages.docid: 97727
negative_passages.text: Children's short story about material that accelerates away from gravity