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Can the velocity of an object be zero at the same instant its acceleration is not zero?
Wiki User
∙ 14y ago
Consider the gravitational pull of the earth and acceleration due to gravity. When you throw a ball in the air, at the highest point, it is stopped and has a velocity of 0. However, if the acceleration of the ball was also 0, then the ball would not be able to come back down to the earth. In order for the ball to come back down, there must be an acceleration. This acceleration is the acceleration due to gravity which is constant at the surface of the earth at 9.8 m/s^2. Another example: Say a car is rolling down a hill backwards. In order to stop the car from rolling more, the driver accelerates. After a certain amount of time, the car will stop (with velocity of 0) and then it will start moving up the hill again. When it is stopped, the car is still accelerating in order to overcome the force of gravity pulling the car down the hill.
Technically, an object is accelerating if it's changing it's velocity. This includes speeding up, slowing down, and turning. So, yeah, if an object isn't moving at all, but is turning, it's still accelerrating.
Wiki User
∙ 12y ago
Wiki User
∙ 11y agoYes. This happens, for example, when you throw an upject directly up, and it reaches its highest point. In that case, its velocity is zero, and its acceleration is -9.8. (If it didn't have acceleration, it would stay up there.)
Wiki User
∙ 14y agoAcceleration is the rate of change of velocity, a=dv/dt
Therefor if a= 0 the velocity is constant or constantly the same. It can have any value however while it remains the same.
Wiki User
∙ 12y agoSure. When you toss a ball up into the air, that's exactly what it has at the top
of its arc, when it runs out of upward steam and starts to move downward.
Wiki User
∙ 14y agoYes. For example a swinging pendulum has zero velocity at the turning point but acceleration is not zero.
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What has a velocity and acceleration vector in the same direction?
Any falling object has acceleration and velocity vectors in the same direction.
What is a moving object that has a velocity vector and acceleration vector in the same direction?
The net force is in the same direction as the acceleration of an object.
Which describes an object's velocity that changes by the same amount each second?
If the acceleration is constant, yes. However, the acceleration of an object can vary. The rate of change of acceleration is called jerk.
When the velocity of a moving object stays the same it has a?
an acceleration of Zero, and a constant Inertia.
How can an object be accelerating while traveling at the same speed?
Acceleration is the rate of change of VELOCITY, not of SPEED. If the velocity changes, there is acceleration. It is enough for the direction to change.
Can the velocity of an object be 0 at the same instant its acceleration isn't 0?
Yes it can.
Can velocity of an object be zero at the same instant its acceleration is not zero?
Yes. For example a swinging pendulum has zero velocity at the turning point but acceleration is not zero.
When the acceleration of an object is zero what is the velocity at the same time?
As long as acceleration is zero, the object's velocity is constant.
What has a velocity and acceleration vector in the same direction?
Any falling object has acceleration and velocity vectors in the same direction.
Can an object have zero velocity at the same time that it has acceleration?
Absolutely. That's exactly the situation of a rubber ball that was tossed straight up, at the instant when it's at the top of its arc. Any object that's not connected to anything else and is rising or falling has constant acceleration ... the acceleration of gravity. If it was originally launched upward, then it eventually runs out of steam, stops, reverses direction, and starts moving down. At that instant during its constant acceleration, its velocity is zero.
How does acceleration affect motion in the same direction?
It will increase the velocity of the the object in which the acceleration is applied.
What moving object speed up in what direct is the acceleration?
The acceleration is the same direction of the velocity
Can acceleration and velocity be the same?
No. Velocity is the change of location and accelarion is any change that occurs to the velocity of an object.
If the acceleration of an object is in the same direction as the velocity what happens to the velocity of the object?
a = F/m, where a is acceleration, F is net force, and m is mass in kilograms.
What is true when the velocity and the acceleration of an object are in the same direction?
In that case, the object speeds up.
What is the velocity on an object with no net force?
When there is no resultant force there is no acceleration therefore the velocity will stay the same.
How are speed velocity and acceleration are the same?
They all have to do with how fast an object is moving
