The velocity vector is constant in magnitude but changing in direction. … For this reason, it can be safely concluded that an object moving in a circle at constant speed is indeed accelerating. It
is accelerating
because the direction of the velocity vector is changing.
Can you accelerate while traveling at a constant speed?
(a) Is it possible to be accelerating while traveling at constant speed? … Even though your speed is constant, your velocity vector is changing, so your acceleration is nonzero. (b)
No
. If you follow a curve, the direction of velocity must change.
Can a body have uniform speed but still have acceleration?
Since speed is equal to the magnitude of the velocity vector, it will also be constant. Again, since the acceleration is the rate of change of velocity of a body with time, if the velocity is constant, the acceleration of the body will be zero. … Hence,
a body can have a constant speed
and still be accelerating.
What is a situation where you can accelerate even though your speed doesn’t change?
Acceleration therefore occurs whenever an object changes direction- for example, a
car driving around a roundabout
is constantly accelerating even if its speed does not change.
How can a car move a constant speed and accelerate?
The car experiences a
centripetal force
as it turns the corner as a result of friction. This in turn causes a centripetal acceleration, which causes the direction of the velocity to change.
Can an object have a speed of zero while it has an acceleration that is not zero?
It is
possible to have a non-zero value of acceleration
when the velocity of a body is zero. … At the highest point, the velocity of the ball becomes zero, after which it starts to fall down. At this point, the velocity of the ball is zero yet its acceleration is equal to g=9.8m/s2.
Can you go around a curve with 0 acceleration?
It is not possible to round a curve with zero acceleration
because to change the direction of the velocity vector, acceleration must act on the object. However, with constant acceleration, this can be possible, as it happens in uniform circular motion.
What is constant speed?
Definition:
When the speed of an object remains the same
– it does not increase or decrease – we say it is moving at a constant speed.
Can a body have zero velocity and acceleration?
In the simple harmonic motion during the motion, at the extreme positions, the velocity of the body is zero but the acceleration is highest. for example, the simple harmonic motion of spring and the simple harmonic motion of Pendulum. Therefore, a body can have zero velocity and
finite acceleration
.
Can a body having non-uniform velocity will have zero acceleration?
S1 : A body having non-uniform velocity will have zero acceleration. … It will travel along a line of force, if it has some initial velocity in the direction of a non-zero acute angle with the line of force.
Can a body have constant speed and still have a varying velocity?
Yes,
a body has constant speed as well as variable velocity
. Consider an example: A particle moving in a circular path with a uniform circular motion.
What are two ways a car can accelerate without speeding up?
Acceleration is the name we give to any process where the velocity changes. Since velocity is a speed and a direction, there are only two ways for you to accelerate:
change your speed or change your direction—or change both
.
What is speed that does not change called?
A speed that does not vary is called
average speed
. … When an object’s speed changes, its velocity also changes.
Does changing direction affect acceleration?
When a moving object changes direction,
its velocity changes and it is accelerating
. The speed of a horse moving around on a carousel remains constant, but it is constantly changing direction. So, the horse is accelerating.
What happens to an object with zero acceleration?
What happens when acceleration is zero? If acceleration is 0,
the velocity is not changing
. If the velocity is constant (0 acceleration) then the object will continue without slowing down or speeding up.
What would be the net force on an object if the object’s acceleration is 0?
If there is zero acceleration, that means there
is no net force on the object
, or .
