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How long does it take a rocket ship of a constant acceleration of 9.8 m s reach a velocity of one tenth of the speed of light?
Wiki User
∙ 14y ago
0.1 of the speed of light = 30,000,000 meters per second.
Ignoring relativistic effects, constant acceleration of 1G brings you there in
(30,000,000 / 9.8) = 3,061,224 seconds
= 850.34 hours
= 35.43 days (rounded)
Wiki User
∙ 14y ago
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Is velocity of light constant?
Yes according to most theories the velocity of light in a vacuum is constant. (In water and glass it is slower!)
What is speed does not change over time called?
A change in speed is a change in velocity - so, a change in speed is an example of acceleration! Acceleration may be positive or negative. Negative acceleration is sometimes called deceleration. When a force acts on an object; it may change the object's acceleration (speed, direction, or both).
Is it possible for a body to have its velocity and acceleration pointing in opposite directions?
Sure. Anything that's slowing down has velocity and acceleration in opposite directions. -- A ball tossed up in the air has upward velocity and downward acceleration. -- A car stopping for a red light has forward velocity and backward acceleration.
Is it possible for body to have its velocity and acceleration pointing in opposite directions?
Sure. Anything that's slowing down has velocity and acceleration in opposite directions. -- A ball tossed up in the air has upward velocity and downward acceleration. -- A car stopping for a red light has forward velocity and backward acceleration.
What is the magnitude of average velocity?
Not directly. acceleration is the rate at which velocity changes, but unless near light-speed the only reason velocity would cause any difference to acceleration would be due to forces which are proportional to velocity, such as drag or friction. Near the speed of light time bends so a body would, compared to the rest of the universe, appear to decelerate so as to reach a maximum velocity of the speed of light.
What is light's acceleration if its traveling at a constant speed of 300000 km s?
It has no acceleration. The definition of acceleration is the change in velocity over time, so if it is traveling at a constant speed, it has no acceleration. Also, the speed of light is a constant, which means it does not change.
How many g's is the speed of light?
speed of light is constant velocity and does not accelerate so there is no g force
How are constant speed and constant acceleration different?
There is a huge difference between constant speed and constant acceleration. Constant speed is when the object is travelling constant, no change in its velocity and acceleration or in other words no extra force to speed up. Constant acceleration when the object is acceleration constant, it means that the speed of the object is change at the same rate each second. The acceleration rate at which the object is travelling is constant. for example, when a car is stationary at a traffic light and it starts acceleration, picking up speed but the rate of acceleration will not constant because the amount of force applied differs each second due to the acceleration rate.
Is velocity of light constant?
Yes according to most theories the velocity of light in a vacuum is constant. (In water and glass it is slower!)
What is speed does not change over time called?
A change in speed is a change in velocity - so, a change in speed is an example of acceleration! Acceleration may be positive or negative. Negative acceleration is sometimes called deceleration. When a force acts on an object; it may change the object's acceleration (speed, direction, or both).
Is it possible for a body to have its velocity and acceleration pointing in opposite directions?
Sure. Anything that's slowing down has velocity and acceleration in opposite directions. -- A ball tossed up in the air has upward velocity and downward acceleration. -- A car stopping for a red light has forward velocity and backward acceleration.
Is it possible for body to have its velocity and acceleration pointing in opposite directions?
Sure. Anything that's slowing down has velocity and acceleration in opposite directions. -- A ball tossed up in the air has upward velocity and downward acceleration. -- A car stopping for a red light has forward velocity and backward acceleration.
Can an object have zero velocity and non zero acceleration at the same time?
Yes. Consider a skydiver in freefall. Fairly quickly the skydiver will reach terminal velocity (the speed at which their acceleration from gravity is cancelled out by the resistance of the air through which they are falling). At terminal velocity the skydiver has non-zero velocity (about 56m/s or 200km/h) but zero acceleration (because their velocity is not increasing). In a vacuum, where there is no air resistance, there is also no terminal velocity. Because there is no force acting against acceleration an object will continue to accelerate provided its source of acceleration continues to be applied. It is worth noting that an object cannot use this rule to exceed the speed of light because as the speed of light is approached the relative time for the object slows. On earth, however, or indeed in any similar environment, an object can certainly have zero acceleration and non-zero velocity.
What is the magnitude of average velocity?
Not directly. acceleration is the rate at which velocity changes, but unless near light-speed the only reason velocity would cause any difference to acceleration would be due to forces which are proportional to velocity, such as drag or friction. Near the speed of light time bends so a body would, compared to the rest of the universe, appear to decelerate so as to reach a maximum velocity of the speed of light.
What is an example of an object moving at constant speed and constant velocity?
Photon or rather light
What is speed that does not change - called?
constant
If Light travels in a straight line at a constant speed of 300000 kilometers per second What is the light's acceleration?
Trick question. A "constant speed" automatically means zero acceleration -- there is no change in speed.
