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Can velocity of an object be in different direction than the acceleration?
Wiki User
∙ 12y ago
Yes. For example, a ball thrown vertically in the air has a positive velocity (upwards) but a negative acceleration due to gravity (downwards at ~9.81 m/s^2), until it begins to move downwards.
Wiki User
∙ 16y ago
Wiki User
∙ 12y agoYes. The sign on velocity denotes direction. The sign on acceleration determines if
the object is speeding up or slowing down. If the sign on acceleration matches the
velocity then the object is speeding up. If the sign is opposite then the object is
slowing down.
-- A car is slowing down for a red light.
Velocity is forward. Acceleration is backward.
They're 180 degrees different.
-- A ball is tossed upward.
Before it reaches the peak, velocity is upward, acceleration is downward.
They're 180 degrees different.
-- A satellite or a roulette ball is in a circular orbit.
Velocity is tangent to the circle. Acceleration is toward the center.
They're 90 degrees different.
-- A canonball is fired horizontally.
As it leaves the muzzle, its velocity is horizontal, the acceleration of gravity is vertical.
They're 90 degrees different.
The horizontal component of its velocity doesn't change, but the vertical component grows.
The resultant velocity vector points more down as time goes on.
The angle between velocity and acceleration (of gravity) continually shrinks,
starting at 90 degrees and decreasing until the ball lands somewhere.
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How are velocity and acceleration different?
acceleration is the increase of speed in a moving object. velocity is the speed and direction of a moving object.
Can the velocity of object reverse direction when its acceleration is constant?
yes, if the acceleration is in the opposite direction of the velocity.
What has a velocity and acceleration vector in the same direction?
Any falling object has acceleration and velocity vectors in the same direction.
Is acceleration a change in the position of an object?
Yes. Acceleration is a change in velocity. As velocity is a vector (direction and speed) changing either the speed or direction will change the velocity and thus be an acceleration (or decelleration)
Can you cite an example in which the acceleration of a boby is opposite in direction to it's velocity?
Anytime an object is slowing down, its acceleration is in the opposite direction to its velocity.
How are velocity and acceleration different?
acceleration is the increase of speed in a moving object. velocity is the speed and direction of a moving object.
Can the velocity of object reverse direction when its acceleration is constant?
yes, if the acceleration is in the opposite direction of the velocity.
What has a velocity and acceleration vector in the same direction?
Any falling object has acceleration and velocity vectors in the same direction.
Velocity is the change of speed and/or direction of an object?
FALSE. Acceleration is the change of speed and/or direction of an object.
Rate of change of the velocity of an object?
The change in velocity is just the change in velocity. The RATE of change of velocity - how quickly velocity changes - is usually called "acceleration".
Is acceleration a change in the position of an object?
Yes. Acceleration is a change in velocity. As velocity is a vector (direction and speed) changing either the speed or direction will change the velocity and thus be an acceleration (or decelleration)
Can you cite an example in which the acceleration of a boby is opposite in direction to it's velocity?
Anytime an object is slowing down, its acceleration is in the opposite direction to its velocity.
Is acceleration how quickly an object's velocity changes?
Yes, acceleration is the how the velocity changes. This also includes when an object turns
When does an object undergoes acceleration?
Acceleration is the change in velocity of an object over time. Take note that velocity is a vector quantity which means that it has magnitude and direction...Thus...An object undergoes acceleration when:1. there is a change in the magnitude of the velocity (speed) of an object.2. there is a change in direction of an object.3. it changes both in direction and magnitude.
Can two direction of velocity of an object change when acceleration is constant?
An object can have only one velocity at any point in time. That velocity can have components in two (or more) directions.If acceleration is constant (but non-zero), then the velocity in any direction other than perpendicular to the direction of the acceleration must change.
Do Both speed and acceleration include the direction of an object's motion?
No. The velocity of an object is how fast it is moving as well as the direction of the motion. So when considering one dimension, the velocity can be positive or negative. The speed of the object is simply the magnitude (absolute value, in the case of one dimension) of the velocity, with no direction. Acceleration is the change in velocity and does include direction. So if an object has a positive velocity (in one dimension) and its speed increases, the acceleration is negative. However, if the speed of an object moving the negative direction increases, then the acceleration is negative, because the velocity becomes "more negative."
How do you find out the direction of angular accelaration?
The direction of angular acceleration comes from whether the angular speed of the object is clockwise or counterclockwise and whether it is speeding up or slowing down.The direction of the angular acceleration will be positive if the angular velocity is counterclockwise and the object's rotation is speeding up or if the angular velocity is clockwise and the object's rotation is slowing downThe direction of the angular acceleration will be negative if the angular velocity is clockwise and the object's rotation is speeding up or if the angular velocity is counterclockwise and the object's rotation is slowing downThe angular acceleration will not have a direction if the object's angular velocity is constant
