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2012-04-28 13:55:26
2012-04-28 13:55:26

Velocity is a vector (has a size and a direction) but speed is a scalar (just a number).

The velocity is therefore given by the speed and the direction the speed is going. If you change the direction but continue at the same rate the velocity changes but the speed doesn't


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No, because acceleration is the rate of change of velocity.

No, it isn't possible. Velocity specifies both speed and direction; if velocity doesn't change, that means that neither the speed nor the direction change.

Velocity is Speed in a given direction. Moving at constant velocity is equivalent to say moving with a constant speed in a specified direction. So, moving at constant velocity implicitly means moving with constant speed.

"Acceleration" means change of velocity. If velocity is constant, then acceleration is zero.

Not necessarily. Constant velocity also means no change in direction.

constant velocity means no acceleration. An object can be moving at constant speed, like a satellite in orbit, but its velocity is changing because direction is changing

Acceleration is the CHANGE in velocity; you're assuming CONSTANT velocity. So the acceleration is zero.

If there is acceleration (uniform or otherwise, but non-zero acceleration), the velocity changes. Constant velocity means that the velocity does not change.

the question is very a body does not have acceleration when it is moving with constant velocity ,because a body posses acceleration when its velocity is not remain conserved or constant.yes if a body have constant speed it may have acceleration but not in case of constant velocity.

yes the acceleration is at zero because there is no change in acceleration if the velocity is constant

constant speed means no acceleration and thus no change in velocity

since accelaration is the change in velocity of an object per unit time......if velocity is zero then there is no acceleration.its nt possible

A particle moving with a constant velocity has no acceleration. Acceleration is the change in velocity over time. If the velocity is constant, there can be no acceleration. For you Calculus junkies, dv/dt (v is velocity) is acceleration, and will equal zero if v is a constant.

No, when a body is moving with constant velocity then neither the magnitude nor the direction changes, and that's exactly the definition of zero acceleration.

a "body" "moving body" an "object" is moving with constant velocity. [OR] a "body" is moving with constant velocity.

there is no acceleration if the body is moving with constant velocity

A car moving at constant speed in a straight line is also moving at constant velocity.

The net force on an object moving at a constant velocity is zero.

A body is moving at constant velocity including zero at Equilibrium Condition, No change of energy or zero force. With force a body can accelerate, move with increasing velocity.

The velocity does not change direction or magnitude. The object 1) may not be moving, or it 2) may be moving at a constant velocity. In the case of the latter, that means it's moving in the same direction and at a constant speed.

Acceleration is zero when the body is moving with a constant velocity. This is one of the newton's laws.

An object at rest has a constant velocity of zero. Both the object at rest and the object moving at constant velocity have zero acceleration.

If the momentum doesn't change, the velocity doesn't change, either, since we can assume that the mass will hardly change.

A car moving with a constant speed is moving with a constant velocity if and only if it is travelling along a straight line.

No. You can't tell the difference, for one reason: There IS no difference.

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