What does it mean if your velocity is 0?
Explanation: While velocity is a measure of speed in a vector, acceleration measures the change of speed (also in a vector). If velocity is 0 , that means the object is not moving, but with acceleration present, there is a force acting on the object.
Yes, an object can have zero velocity and still be accelerating.
For example, if a ball is thrown up then at the highest point, velocity is zero but the acceleration is non-zero.
Updated On: 27-06-2022
Yes. When a body is thrown vertically upwards it has zero velocity at its highest point . Even then it has acceleration equal to the acceleration due to gravity in vertical motion .
If we consider a body in motion having the same initial and final point, its displacement is zero while the distance covered is not zero. Therefore it has zero velocity and a non-zero speed.
This means that the change in the velocity is still taking place when the velocity of the object reaches zero. Therefore, the body is still accelerating.
Acceleration is rate of change of velocity. Since velocity is zero acceleration is also zero.
If an object is in motion but its speed is constant and direction of the motion is also not changing, its acceleration is zero and still it is in motion.
- Earth's rotation around the Sun,
- Moon's orbital motion around the Earth.
- The vehicle's speed.
- How quickly the train is moving.
- The river is moving at a fluctuating speed.
- The rate at which water leaves a faucet.
- The speed at which a bat strikes a ball.
2. if velocity is zero , then it's speed need not be zero. 3. If speed is constant , then it's speed must be constant .
Does velocity always start at 0?
If a car starts from rest, its initial velocity is zero. If a projectile is tossed into the space, its initial velocity will be more than zero. If a car stops after applying the brake, the initial velocity will be more than zero, but the final velocity will be zero.
Nothing can travel faster than 300,000 kilometers per second (186,000 miles per second). Only massless particles, including photons, which make up light, can travel at that speed. It's impossible to accelerate any material object up to the speed of light because it would take an infinite amount of energy to do so.
It is possible for an object to move for 10 seconds at high speed and end up with an average velocity of zero.
No. Velocity is a vector, and speed is the magnitude of the velocity vector.
An object with zero velocity will mostly have zero acceleration but there are some cases where an object with zero velocity has a non-zero acceleration. For example, when a ball is thrown upwards, the velocity is zero at its highest point.
An object at rest has zero velocity - and (in the absence of an unbalanced force) will remain with a zero velocity. Such an object will not change its state of motion (i.e., velocity) unless acted upon by an unbalanced force.