I'm not a scientist, but the following seems reasonable to me. If your frame of reference is the earth's surface, then it seems clear that an object can have zero velocity and zero acceleration. You could even have non-zero velocity and zero acceleration. What seems impossible is to have zero velocity and non-zero acceleration. When you think of accelaration think of changing velocity. A car moving straight down the highway at a constant speed of 55 mph is neither speeding up nor slowing down. Though it has velocity, there is no change in its velocity so acceleration will be zero. For a car parked on the side of the road, on the other hand, its velocity will be zero but what about its acceleration? Is velocity changing? No, so it will have zero velocity and zero acceleration.
Yes.
An object can only accelerate if its velocity changes.
No, an object cannot accelerate if its velocity is constant. Acceleration is defined as the rate of change of velocity, so if the velocity of an object is constant, its acceleration is zero.
Accelerate. Using Newton's second law, Net Force = mass * acceleration rearranged the equation acceleration = Net Force/mass so when the force is non zero and the mass is non zero, the object will accelerate. Note: This does not mean that the object is always at rest when the force is zero, it simply means the velocity is constant (when velocity =0, the object is at rest).
If the forces are balanced (in other words, the net force on an object is zero), then the object will not accelerate (its velocity will not change).If the forces are balanced (in other words, the net force on an object is zero), then the object will not accelerate (its velocity will not change).If the forces are balanced (in other words, the net force on an object is zero), then the object will not accelerate (its velocity will not change).If the forces are balanced (in other words, the net force on an object is zero), then the object will not accelerate (its velocity will not change).
Yes, an object with zero velocity can have an acceleration that is greater than zero if there is a change in its velocity over time. Acceleration is the rate of change of velocity, so even if the object starts with zero velocity, it can still accelerate if its velocity increases or decreases.
Yes, an object can have zero velocity and still be accelerating if its speed is changing in a direction other than its initial motion. For example, if an object is moving in a circle at a constant speed, its velocity may be zero at a certain point, but it is still accelerating due to the change in its direction.
When the object reaches a state of dynamic equilibrium, where the sum of all forces acting on it is balanced and there is no net acceleration, the object will not accelerate any more. This occurs when the object's acceleration becomes zero.
accelerate. If the net force acting on an object is non-zero, it will accelerate in the direction of the force according to Newton's second law (F=ma). If the net force is zero, the object will either remain at rest or continue moving at a constant velocity.
No, not all forces will cause an object to accelerate. For an object to accelerate, the net force acting on the object must be non-zero. If the net force is zero, the object will either stay at rest or continue to move at a constant velocity.
When acceleration is zero, the object's velocity can still be changing if the initial velocity is not zero. However, if acceleration is zero and the initial velocity is also zero, then the object's velocity will remain constant.
If the net force acting on a motionless object is not zero, the object will start to accelerate in the direction of the net force. Newton's second law states that an object will accelerate in the direction of the net force applied to it, causing a change in its velocity.
If the net force acting on a stationary object is zero, then the object's velocity will remain unchanged, meaning that the object will stay stationary. In other words, the object will not start moving or accelerate without an external force acting on it.