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Yes, velocity and acceleration can point in the opposite direction to each other. This is because neither one depends on the other. When velocity and acceleration are opposite each other this results in slowing down, for example when you hit the break on your car.
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Is it possible that the velocity of an object be in direction other than the direction of acceleration?
Yes. For example, if you throw a ball straight up in the air, it has a positive initial velocity, but the acceleration due to gravity is in the other direction. From your perspective, until the point when it starts coming back down it will be "decelerating" but really that's just acceleration in the opposite direction of the velocity.
Can two directions of velocity of an object change when acceleration is constant?
An object can have only one velocity at any point in time. That velocity can have components in two (or more) directions.If acceleration is constant (but non-zero), then the velocity in any direction other than perpendicular to the direction of the acceleration must change.
Give an example in which velocity is zero yet acceleration is not zero?
Velocity is directional, so if something is accelerating in the opposite direction from the one it is moving it, there will come a point where it has 0 velocity but still has accelerating. If you throw a ball at the ground and it bounces, for example.
Why that the slowing down of moving object is considered to be a form of acceleration?
Acceleration is defined by physics as the rate of change of velocity over time. a = dv/dt As time changes, any change in velocity results in a change in acceleration. That change can be positive or negative. If you want to know why, its because acceleration and velocity are vectors. A vector has a magnitude and a direction. The magnitude is the value, and the direction refers to the direction the object is traveling. An example when acceleration doesn't point in the same direction as velocity is when you throw a ball into the air. You throw it up, so the initial velocity is in the upward direction. However the acceleration due to gravity is downward. It will slowly decrease the upward velocity of the ball until it is zero. At that point the ball will start to fall downard and increase in velocity until it hits the ground.
What happens to the speed of an object that is falling in free fall?
It increases at the rate of acceleration due to gravity, 9.8m/s2, until air resistance and the weight of the object become equal but opposite in direction. At that point there is no further acceleration and the object has reached its maximum velocity, called terminal velocity.
Is acceleration always in the same direction as the unbalanced force?
No, acceleration is change in velocity. (And velocity is speed in a certain direction.) If an object slows down, then it is changing velocity and thus accelerating. (In this case, the acceleration is negative.) If an object changes direction, then it's velocity changes, so this is also acceleration. (This is centripetal acceleration.)
Can two direction of velocity of an object change when acceleration is constant?
An object can have only one velocity at any point in time. That velocity can have components in two (or more) directions.If acceleration is constant (but non-zero), then the velocity in any direction other than perpendicular to the direction of the acceleration must change.
What does a tangent to a velocity-time graph measure?
It will measure acceleration in the direction towards or away from the origin.
Is it possible that the velocity of an object be in direction other than the direction of acceleration?
Yes. For example, if you throw a ball straight up in the air, it has a positive initial velocity, but the acceleration due to gravity is in the other direction. From your perspective, until the point when it starts coming back down it will be "decelerating" but really that's just acceleration in the opposite direction of the velocity.
Can two directions of velocity of an object change when acceleration is constant?
An object can have only one velocity at any point in time. That velocity can have components in two (or more) directions.If acceleration is constant (but non-zero), then the velocity in any direction other than perpendicular to the direction of the acceleration must change.
Give an example in which velocity is zero yet acceleration is not zero?
Velocity is directional, so if something is accelerating in the opposite direction from the one it is moving it, there will come a point where it has 0 velocity but still has accelerating. If you throw a ball at the ground and it bounces, for example.
Why that the slowing down of moving object is considered to be a form of acceleration?
Acceleration is defined by physics as the rate of change of velocity over time. a = dv/dt As time changes, any change in velocity results in a change in acceleration. That change can be positive or negative. If you want to know why, its because acceleration and velocity are vectors. A vector has a magnitude and a direction. The magnitude is the value, and the direction refers to the direction the object is traveling. An example when acceleration doesn't point in the same direction as velocity is when you throw a ball into the air. You throw it up, so the initial velocity is in the upward direction. However the acceleration due to gravity is downward. It will slowly decrease the upward velocity of the ball until it is zero. At that point the ball will start to fall downard and increase in velocity until it hits the ground.
What happens to the speed of an object that is falling in free fall?
It increases at the rate of acceleration due to gravity, 9.8m/s2, until air resistance and the weight of the object become equal but opposite in direction. At that point there is no further acceleration and the object has reached its maximum velocity, called terminal velocity.
Does a change in direction change acceleration?
Not exactly, it can change a few degrees of its direction, but cannot change its velocity because if it stops, the force of motion that goes with it will demolish the car therefore it cannot change it's velocity.++++???? If you put the question in everyday language, it is asking "Can a car change direction while accelerating?"Yes it can, provided the driver is careful to keep the acceleration and instant speed within safe limits. I emphasise 'speed' because the direction hence velocity - a vector value - is changing.I have no idea of the point about the remark about stopping - the supposed consequences are fiction, and the question is about accelerating.
Can an object have velocity and acceleration vectors that point in opposite directions?
Yes it can, and it's really easy. -- A stone tossed upward, before it peaks and starts falling, has upward velocity and downward acceleration. -- A car driving east and slowing for a stop-sign has eastward velocity and westward acceleration.
An object with a constant acceleration but with zero velocity what is mean is n't possible.?
Yes, it can happen. when the velocity is momentarily zero while an object is changing from moving in the positive direction motion to the negative direction; the object obviously will stop at one point, but will still have a constant acceleration.
What is the point of no acceleration?
Constant Velocity
