Sure. A pendulum and a park swing both have constant acceleration due to gravity,
and the direction of their velocity changes over and over again until they're stopped.
yes, if the acceleration is in the opposite direction of the velocity.
Sure. A pendulum, a child's playground swing, and a bullet shot straight up all have constant acceleration, and all reverse direction.
Yes, it can, if the initial velocity vector of an object was in opposite direction to its constant acceleration. Example: 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.
An object can reverse direction anytime its velocity is in the opposite direction of its acceleration.A good example is throwing a ball straight up into the air. As soon as the ball leaves your hand, the acceleration due to gravity begins to slow it down. Even though the initial velocity is going straight up, once the ball leaves your hand the acceleration is constantly pulling the ball back towards earth. The ball eventually reaches its peak height, and reverses direction, falling back to earth. This all happens while the acceleration remains constant.
It slow down, and eventually reverse direction.
yes, if the acceleration is in the opposite direction of the velocity.
Sure. A pendulum, a child's playground swing, and a bullet shot straight up all have constant acceleration, and all reverse direction.
Of course. 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.
Yes, it can, if the initial velocity vector of an object was in opposite direction to its constant acceleration. Example: 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.
An object can reverse direction anytime its velocity is in the opposite direction of its acceleration.A good example is throwing a ball straight up into the air. As soon as the ball leaves your hand, the acceleration due to gravity begins to slow it down. Even though the initial velocity is going straight up, once the ball leaves your hand the acceleration is constantly pulling the ball back towards earth. The ball eventually reaches its peak height, and reverses direction, falling back to earth. This all happens while the acceleration remains constant.
A straight line with a constant slope. But the reverse is not true. A straight line with a constant slope only means constant speed in the radial direction. The velocity may have components at right angles to the radial direction that are changing.
It slow down, and eventually reverse direction.
AccelerationWhen the velocity of an object increases or decreases, that means it has accelerated. Acceleration is defined as the rate of change of velocity.If an object's final velocity is greater than its initial velocity, that indicates positive acceleration. If an object's final velocity is less than its initial velocity -- if, say, it slows down and comes to a stop -- then that indicates negative acceleration. Deceleration is another way of saying negative acceleration. But . . .It is good idea to avoid using the term deceleration, because an object that is experiencing negative acceleration may slow down, come to a stop momentarily, and then reverse direction and speed up -- IN THE OPPOSITE DIRECTION!You can think of it this way: When an object is slowing down, its acceleration is in the direction opposite to its motion. We think of that as negative acceleration.
One answer to this is that all object are in motion all of the time relative to all other objects. With that said, in the context of permanent halt" the only way that an object can be perceived as "halted" is by another object with the same velocity.
The car's acceleration is in forward direction.
Yes, by definition, Acceleration is the derivative of velocity. From Calculus, we know, the derivative of any constant function is simply 0. Therefore, any velocity time graph containing a constant velocity function will have an acceleration function = 0. c'=0 or c d/dx=0 also, there is a very simple, and nice progression to things in the field of Kinematics. where given a function, whether it be position, velocity, or acceleration, you can find the other through calculus. the progression for integration goes as follows, jolt (the feeling you get when acceleration changes), acceleration, velocity, position. And the reverse for derivatives. Having a velocity function of something like 55mph, think of it as driving on the freeway, absent of outside forces of friction, air resistance and hills, you never have to accelerate (positively, or negatively) to maintain speed, and the math backs that up. 55 is constant, and the derivative is 0. now if you had a velocity function such as 2x^2 + 5, also known as a parabolic function, you would take the derivative and get an acceleration of 4x, and a jolt of 4, and if you integrate to get position, you would have 2/3x^3+5x. Its all about the math.
velocity is the rate of change of displacement with time, or v = dx/dt Acceleration is the rate of change of velocity with time, a = dv/dt deceleration in the true sense doesn't exist, for it is just a term for negative acceleration. You wouldn't say that you are develociting if you are in reverse.