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A body is being accelerated if its speed OR direction are changing.
A satellite in a perfectly circular orbit around the earth ... like a TV satellite ... is moving at constant speed. But, technically, since its direction is always changing, to keep it on a circle, it's experiencing constant acceleration.
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∙ 14y ago
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Is it possible when a body to have acceleration when moving constant speed?
Yes. "Acceleration" does not mean "speeding up". It means any change in speedor direction of motion. If the body is moving on a curve, even at a constant speed,its direction is changing, so there is acceleration.
What does mean the velocity remains constant?
there is no acceleration if the body is moving with constant velocity
How does acceleration affect displacement?
If a body travels at a constant speed it will travel a certain distance (doesn't matter how far for our purposes). If it's accelerating then its speed is constantly increasing and therefore it covers more distance over every increment of time that it would if it were moving at its initial speed. So, acceleration increases displacement.
What can you say about the motion of a body if its displacement time graph is a straight line?
The object is moving at a constant speed.
Why do you push harder on the pedals of the bicycle when first starting out than when moving at constant speed?
Basically, as a body accelerates, the forces acting upon it are unbalanced. However, as one reaches uniform speed (constant speed) you are no longer accelerating, so the forces acting upon the bike are now balanced. Newton's second law of motion states that when something is moving, it will continue to move at the same velocity until another force is applied (inertia). Because of this, the bike will be moving "on its own" after you stop peddling, so there is less need to pedal.
Can a body have constant speed and still be accelerating give example?
Yes. The simplest example is an object moving at a constant speed in a circle.
What is static inertia?
Static inertia is when a body at rest wants to stay at rest, or a body that is moving at a constant speed stays at the constant speed.
When do forces balance?
Balanced forces occur when a body is at rest, and when a body is moving at a constant speed in a constant direction.
Examples of constant speed but changing acceleration?
A body moving with constant speed in a circular path has acceleration changing at every point.
When can the equations of kinematics not be used?
Equations of kinematics or equations of motion can not be used when the body is not accelerating or is moving with a constant velocity.
When do you consider a body moving at a constant velocity?
When it's moving in a straight line at a constant speed. And it has nothing to do with my judgment or opinion. That's the definition.
Sketch a distance time graph as when a body is at rest and when a body is moving with constant speed?
about a hour
What will be acceleration of a car moving in a circular motion with constant speed.?
If body is moving in a circle with uniform or constant speed its acceleration will be uniform as velocity i.e. to say direction is changing at every point.
Can a body have constant velocity when it has constant speed?
Of course. In fact, in order to have constant velocity, it must have constant speed.What you really want to know: Can a body have changing velocity when it has constant speed ?The answer to that one is also "yes", for example when it is moving in a circle, the speed is constant but the velocity is changing all the time (in direction).
Is it possible when a body to have acceleration when moving constant speed?
Yes. "Acceleration" does not mean "speeding up". It means any change in speedor direction of motion. If the body is moving on a curve, even at a constant speed,its direction is changing, so there is acceleration.
What does mean the velocity remains constant?
there is no acceleration if the body is moving with constant velocity
Which term refers to the speed at which a falling objects stops accelerating and begins to fall at a constant rate?
Its terminal velocity.that is the drag force on the body because of air and gravitational force on the body becomes equal and the body starts fee falling with a constant velocity,it may differ for each bodies according to mass and area of cross section of the body,density of fluid in which the body is moving.
