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Note that there are particles, like photons and gravitons, that only move at the speed of light. For "normal" objects , the following problems appear:
1) The mass will increase indefinitely - at the speed of light, an object would have an infinite mass.
2) Related to the previous point: it would require an infinite energy to take the object to the speed of light.
3) The addition of speeds doesn't work out. If - for example - a rocket moves at 2/3 of the speed of light (with respect to Earth), and it fires a bullet in the "forward" direction, at 2/3 of the speed of light (with respect to the rocket), then the speed of the bullet with respect to Earth would be less than the speed of light. It looks as if this makes it difficult to come up with a mechanism to make anything move as fast as, or faster than, the speed of light.
What else can I help you with?
Can any object move with the velocity of light?
No object that has mass when it's just sitting there on the table can move at the speed of light. Photons have zero "rest mass".
How can you tell an object has moved?
Because of its velocity (velocity is the rate of change of position), an object will move. An object is stationary if it has no velocity because it will not be able to move without velocity. Therefore, you can tell that an object has moved because of velocity.
What happens to the velocity when an object is accelerated?
A moving object being accelerated will show a change in its velocity (it may move faster, or slower, or experience a change in direction). A stationary object will respond to acceleration only if there is no other force acting to prevent its response. For example: gravity is a constant force of acceleration, but objects cannot move toward the center of the earth if they are being blocked by another object.
Can an object that move at a constant speed be accelerating?
No, an object moving at a constant speed cannot be accelerating. Acceleration is defined as a change in velocity over time, so if the speed is constant, there is no change in velocity and therefore no acceleration.
Can any object move with the velocity comparable to the velocity of light?
Recently an experiment at the CERN has clocked a Neutrino that they believe EXCEEDED the speed of light. They are double checking the results of this experiment, and looking for explanations.
How fast an object move?
The maximum speed of any object is hardly equal to speed of light which is 3*10^8 approximately.
What is the velocity if acceleration is zero?
velocity may be zero or may not be zero i.e. if the object may continue to move with uniform velocity.
What are the condtions for an object to stay at restto keep moving at constant velocity or to move with increasing velocity?
The Condition of Equilibrium, Force equal zero, is the condition of an object at rest or moving at constant velocity. Non-Equilibrium Condition, Force is not zero, is the condition for an object to move with increasing velocity.
Can an object move without acceleration?
Yes. An object cannot begin to move without acceleration, but once it's moving, it needs no further acceleration to continue moving.
Why an object will move if its velocity is constant?
If an object's velocity is constant, it will continue to move at the same speed and in the same direction due to Newton's first law of motion. Unless an external force is applied, the object will maintain its state of motion.
How fast an object move and the direction it moves is called?
Velocity
What is the acceleration if velocity is zero?
velocity may be zero or may not be zero i.e. if the object may continue to move with uniform velocity.
