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A changing velocity can maintain constant speed if the motion is circular. The constant change in direction is a change in velocity, even if the speed is constant.
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Can an object have a constant speed and the varying velocity at the same time explain?
Velocity is a vector. A vector has a magnitude and a direction. The scalar or magnitude portion of velocity is speed. Velocity is a constant only when both the speed and direction are not varying. Hence, when the speed is changing, the velocity cannot be a constant.
Is it possible to run round an oval running track at constant velocity?
No, it is not. At a constant speed, yes. But velocity has a direction component, and by running on (following) a curve, a change of direction (and, therefore, velocity) will have to be made. Again, note that speed can stay the same, but velocity has a direction vector associated with it that cannot be ignored.
What is the sum of an object's mass and velocity?
Mass and velocity are dimensionally different. They cannot be added.
Why constant is used?
Constant is the speed of light and as the speed of light cannot change it is 'constant'
What happens when the amount of drag becomes larger than the amount of thrust?
This state is known as terminal velocity. In it's current shape, an object as described cannot travel any faster. The force of gravity is constant where as the force of air resistance increases with velocity so it takes time for an object to reach its terminal velocity.
Can something have both a constant velocity and constant acceleration?
No it cannot. It is either one or the other. For constant velocity, acceleration must be 0, meaning there is no acceleration happening here. If there is constant acceleration, then the velocity is constantly changing.
Can your body sense constant velocity and explain?
Your body cannot sense constant velocity. For example, you cannot sense that the earth is turning nor can you sense that the earth is orbiting around the sun. And, if you are in a vehicle that is traveling with a constant velocity, you cannot sense that you are moving unless your eyes sense a change in position.
Can a body have a constant velocity but varying speed?
No. If the speed varies, the body accelerates, and velocity cannot be constant.
A science book is being pushed across a table Can the book have a constant speed and a changing velocity?
It can have a constant speed, and a changing velocity, but it cannot have the two at the same time. Remember: Velocity = speed with a directional component.
Can an object have a constant speed and the varying velocity at the same time explain?
Velocity is a vector. A vector has a magnitude and a direction. The scalar or magnitude portion of velocity is speed. Velocity is a constant only when both the speed and direction are not varying. Hence, when the speed is changing, the velocity cannot be a constant.
Why speed of parachutes becomes constant?
Terminal velocity. When the parachutes cannot fall any faster.
Is it possible to run round an oval running track at constant velocity?
No, it is not. At a constant speed, yes. But velocity has a direction component, and by running on (following) a curve, a change of direction (and, therefore, velocity) will have to be made. Again, note that speed can stay the same, but velocity has a direction vector associated with it that cannot be ignored.
If you know that a moving object has a constant velocity you can predict correctly where it will be after a given amount of time. however if you know only that the object has a constant speed you cann?
For constant velocity,which means constant speed and constant direction, you predict where it will be after a given amount of time. For constant speed,which means you do not necessarily know direction, you cannot predict where it will be after a given amount of time, since direction can be changing. Speed is a scalar and velocity a vector.For example of a car is traveling in a circle you cannot tell where it will be in time unless you know the direction change and the radius of the circle for example. If a baseball is thrown to home plate by the pitcher at a speed of 90 mph, in a straight line, now you know speed and direction and if both constant then velocity is constant.
Why does a car traveling at constant speed can accelerate while a car at constant velocity connot?
The question is inherantly flawed. A car traveling at a constant speed cannot accelerate, if it could it's speed would not be constant. "Constant speed" means that speed is not increasing or decreasing but remain consistent over time. For example, if you cover 10 feet during each second, your speed is constant. "Constant velocity" implies constant speed, but it has an additional constraint: you can't change your direction. If you travel constantly at 10 feet per second in a straight line, then your speed is constant and your velocity is constant. But if you travel constantly at 10 feet per second in a wiggly line (or a circle, or anything not straight), then your speed is constant but your velocity is NOT constant. If you travel at a constant speed but change direction, velocity is changed. Or if you travel in the same direction but change the speed, velocity is changed. Average speed is is easier: distance/time So, your question should read: Why can a car traveling at an average speed accelerate, but a car traveling at constant speed cannot? Or Why am I asking the wrong questions?
What did albert einstein say about light?
Einstein said that in a vacuum light travels at a constant velocity that cannot be exceeded by any physical object.
An object cannot be accelerating if it has a constant speedtrue or false?
An object with a constant (vector)velocity is not accelerating. An object with a constand (scalar)speed can actually be accelerating, a car with a constant speed that passes around a corner is changing direction and is subjected to a lateral acceleration.
What happens to an object when it reaches terminal velocity?
If someone is skydiving, the terminal velocity would be the greatest velocity reached by the falling person until they open their parachute. So in that case, the effect would be slowing down because of the parachute. The effect may vary from different cases.
