Yes, it can, if the initial velocity vector of an object was in opposite direction to its
Anything you toss with your hand has constant acceleration after you toss it ...
the acceleration of gravity, directed downward. If you toss it upward, it starts out
with upward velocity, which reverses and eventually becomes downward velocity.
A change in an objects velocity is called acceleration. Velocity is defined as an objects speed of travel AND its direction of travel. Acceleration can change only an objects speed, only its direction or both. If there is no acceleration acting on the object, then the velocity remains constant.
Acceleration is change in velocity so the direction should be the same
Without force there is no acceleration and with no acceleration the velocity remains constant. When the constant velocity is zero the object is at rest.
If the velocity is constant there is no acceleration. Speed is not velocity, velocity has speed and direction. I A car going around a circular track at 60 mph keeps the same speed but changes direction and thus accelerates at a constant speed. Velocity is speed in a certain direction. So change the speed but keep direction the same and you change the velocity. or Change the direction while keeping the speed the same and you change the velocity. If the speed is constant, any change of direction is a change in velocity. Driving around in a circle is a case of constantly changing direction.
Objects moving in uniform circular motion will have a constant speed, and two objects with the same acceleration have a constant velocity.
No. The cyclist is moving at a constant speed, but her velocity is changing. Remember that velocity is speed with a direction vector associated with it. As speed is constant, only direction is changing. But a change in direction is a change in velocity (even if speed is constant), and this requires acceleration in that direction to accomplish the change in direction. You're on the right track, but just recall that acceleration is tied to velocity and not just speed. And note that velocity can change all the time without speed changing. Acceleration must cause the change in velocity. Consider that objects in orbit around the earth move at a pretty constant speed, but accelerate toward the earth all the time. Their speed coupled with their acceleration toward earth cause them to move in an arc - which is their orbital path.
When acceleration is zero, then the object is moving in a straight line with constant speed. (That's the effective meaning of constant velocity.)
The velocity in the x direction would be constant because gravity only affects the vertical components of objects. The velocity in the y direction would increase due to the constant acceleration due to gravity. The acceleration due to gravity on Earth is always -9.81 m/s^2.
Acceleration is the rate of change of velocity (how fast velocity changes - dv/dt). You should also remember that acceleration is a vector, meaning that direction matters. If any objects goes around - even at a constant speed - in a curve, its direction is changing, therefore its velocity its changing, therefore it is accelerating.
This is not true. Acceleration includes direction, but speed does not. Speed in a particular direction is called velocity.
The magnitude of the velocity increases at a steady rate, but its direction remains constant, pointing toward the center of the Earth. (Wherever the event is taking place, the locals refer to that direction as "down".) Since either the magnitude or the direction of the velocity is changing, the effect can properly be called "acceleration".
Acceleration is the change in an ogjects speed or a change in an objects direction of motion or both of these. If instead of speed you use the word velocity , which is both an object's speed and its direction of motion, then you could say "acceleration is the change in an objects velocity" and that would cover all the possibilities in one statement.
Acceleration is the change in velocity and/or direction of an object. Acceleration can either speed an object up, slow it down (deceleration), or change the direction in which the object is moving.
You're fishing for "acceleration", but your description doesn't support that answer.Acceleration is also present if the direction of motion has changed, even if the speed(the size of velocity) hasn't changed.Acceleration explains the change in an objects velocity over time.
The acceleration increases in the direction of the force.
They fall at the same velocity because acceleration due to gravity is constant.
force = mass * acceleration then mass and acceleration is inversly proportional. Actually mass is constant but when the speed increases the mass become less since acceleration and velocity is directly propotional thus acceleration increases too.....thx..with best regards..
They will continue to travel at a constant velocity and direction.
velocity, or velocity vector.
Yes, acceleration is the how the velocity changes. This also includes when an object turns
The law of Conservation of energy, Newton's First law. This law requires the objects acceleration be zero, thus constant velocity.
No. Acceleration is defined as the rate of change of velocity. If velocity is constant, then its rate of change is zero. --------------------------------------------------------------------------- Another contributor obfuscated: If we were to get really picky with our vectors we could say that an object could have constant velocity in the x-y plane and still accelerate in the z-axis. Also a system of objects could have a net-velocity in 3-D space and still have a radial acceleration. A solar system traveling through space at constant velocity will have a radial acceleration, for each component part of the system, around the gravitational center of mass of the system.
An acceleration is a change in velocity. Velocity is a vector quantity; it tells you about both an object's speed and its direction of travel (vectors are often represented as arrows; the length of the arrow is the magnitude, here the speed, and it points in the relevant direction). So you can see that a change in either an object's speed or direction counts as a change in velocity, and is therefore an acceleration.