What happens when acceleration and velocity are in opposite directions?
If acceleration points in the same direction as the velocity, the object will be speeding up. And if the acceleration points in the opposite direction of the velocity, the object will be slowing down.
What is the acceleration of an object is directly proportional to?
The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.
What are the direction of its acceleration and the direction of its velocity if it is slowing down?
If an object is speeding up, then the direction of the acceleration is in the same direction that an object is moving. If an object is slowing down, then the direction of its acceleration is opposite the direction which the object is moving.
What happens to the directions of positive velocity and acceleration if an object is speeding up?
An object which moves in the positive direction has a positive velocity. If the object is speeding up, then its acceleration vector is directed in the same direction as its motion (in this case, a positive acceleration).
What happens when both velocity and acceleration are negative?
If the velocity and acceleration are in the same direction (both have the same sign – both positive or both negative) the object is speeding up. If the velocity and acceleration are in opposite directions (they have opposite signs), the object is slowing down.
Does acceleration act opposite to velocity?
According to our general principle, when an object is slowing down, the acceleration is in the opposite direction as the velocity. Thus, this object also has a positive acceleration. This same general principle can be applied to the motion of the objects represented in the two data tables below.
What does it mean for the acceleration of an object to be indirectly proportional to its mass?
As we increase the force on an object the acceleration increases proportionally. Since the mass does not change as the acceleration increases, we can say that force is equal to acceleration. Therefore, mass is inversely proportional to acceleration.
What happens to acceleration when direction changes?
Yes, that’s right, a change in the direction of motion results in an acceleration even if the moving object neither sped up nor slowed down. That’s because acceleration depends on the change in velocity and velocity is a vector quantity — one with both magnitude and direction.
When an object changes direction the acceleration arrows point to the?
Notice that the change is always toward the inside of the curve. To show this direction of change, the acceleration arrows point toward the inside of the curve. Speeding Up figure moved faster, how would the acceleration arrow change? three ways an object can accelerate?
What happens if you have a positive acceleration and a negative velocity?
Observe that the object below moves in the negative direction with a changing velocity. If the object is slowing down then its acceleration vector is directed in the opposite direction as its motion (in this case, a positive acceleration). …