According to Einstein's theory,
A) material objects get easier to accelerate as they move faster.
B) material objects become less massive as they go faster and faster.
C) no material object can be accelerated up to lightspeed.
D) nothing can move at lightspeed.
E) there are no limitations on the speed of any object.

Question

Quizplus · Accepted Answer

According to Einstein's theory of relativity, as an object moves faster, its mass effectively increases, requiring more energy to continue accelerating it. This means no material object can be accelerated to the speed of light, as it would require infinite energy.

According to Einstein's Theory