Is it possible to have acceleration when velocity is zero?
Since acceleration is the change in velocity over time, there has to be a change in velocity for something to accelerate. Although at an instant in time it is possible to have zero velocity whilst accelerating. For example, if you drop an object at the instant you release it it has zero velocity but it is accelerating.
What happens to acceleration when velocity is zero?
At zero velocity, there is still a net force acting on the object due to the spring, so the object will accelerate in the opposite direction.
Can an object have zero acceleration and nonzero velocity at the same time give example?
Acceleration is the rate of change of velocity with time. As the velocity is a constant value over all the values of time, the rate of change of velocity is thus zero. So, acceleration is zero. So, zero acceleration and non zero velocity are possible for particles moving with constant velocity.
Can a body have a velocity without acceleration give examples?
When an object is thrown upwards, then at the maximum height, velocity of body is zero at that instant but it has acceleration due to gravity. So, at the highest point for a body thrown upwards, velocity is zero and acceleration is equal to g (9.8 ms^-2) in downward direction.
What is an example of zero acceleration?
No acceleration means no change in velocity. For example an apple thrown in space. A photon has zero acceleration because it can’t be accelerated. All other examples of zero acceleration are where the “thing” is moving at a constant velocity relative to an inertial reference frame.
How do you know if acceleration is 0?
When acceleration is zero (that is, a = dv/dt = ), rate of change of velocity is zero. That is, acceleration is zero when the velocity of the object is constant. Motion graphs represent the variations in distance, velocity and acceleration with time.
Is it possible to have an eastward velocity with a westward acceleration?
Answer: An object can have an Eastward velocity while experiencing a Westward acceleration. The car will slowly stop as there will be a decelerration or in other words, an acceleration Westward.
Is acceleration 0 at the highest point?
At a projectile’s highest point, its velocity is zero. At a projectile’s highest point, its acceleration is zero. The rate of change of the begin{align*}xend{align*} position is changing with time along the projectile path.
Can a body have zero acceleration but non zero velocity?
It is possible to have a non–zero value of acceleration when the velocity of a body is zero. Due to this force, the velocity of the object starts decreasing and continues to decrease until it reaches zero. After this, the object starts moving in the opposite direction (that is in the direction of force).
Is it possible to have a positive velocity and negative acceleration?
An object which moves in the positive direction has a positive velocity. If the object is slowing down then its acceleration vector is directed in the opposite direction as its motion (in this case, a negative acceleration).
Can an object have constant non zero acceleration and changing velocity?
Thus, all situations possible. C) an object has constant nonzero velocity and changing acceleration Not possible: velocity cannot be constant in the presence of a non–zero acceleration.
Can a body have constant speed and still have a varying velocity?
No, a body can not have its velocity constant, while its speed varies. Rather, it can have its speed constant and its velocity varying. For example in a uniform circular motion.
Can a body moving with constant velocity have acceleration?
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.