-- "Acceleration" is any change of velocity.
-- "Velocity" is a speed and its direction.
-- "20 meters per second" is a speed, not a velocity, because it doesn't mention a direction.
-- We don't have enough information to say anything about that car's acceleration.
If, for example, it happens to be moving at a constant speed of 20 meters per second
on a circular track, then it has plenty of acceleration.
zero - it is constat velocity. so acceleration is zero50 m/s2 Another : The acceleration is ZERO. Acceleration is defined as the change in velocity per unit time. If the ball is traveling a constant velocity over a two minute period, the acceleration would be zero since there is no change in velocity.
The acceleration would be zero because the turtle is moving at a constant speed
Acceleration of the arrow is -3m/s2A = (velocity minus initial velocity) / time
If the acceleration was constant (15 + 25) /2 = 20 (time does not figure into the averaging at all!)
A period of constant positive acceleration;a second period of zero acceleration; a third period of constant negative acceleration.
If he is moving at a constant speed and not changing direction, then acceleration is zero.
Acceleration is the rate of change of velocity - how fast a velocity changes. Therefore, its units are naturally (meters/second) / second, usually written as meters/second2.Acceleration is the rate of change of velocity - how fast a velocity changes. Therefore, its units are naturally (meters/second) / second, usually written as meters/second2.Acceleration is the rate of change of velocity - how fast a velocity changes. Therefore, its units are naturally (meters/second) / second, usually written as meters/second2.Acceleration is the rate of change of velocity - how fast a velocity changes. Therefore, its units are naturally (meters/second) / second, usually written as meters/second2.
zero - it is constat velocity. so acceleration is zero50 m/s2 Another : The acceleration is ZERO. Acceleration is defined as the change in velocity per unit time. If the ball is traveling a constant velocity over a two minute period, the acceleration would be zero since there is no change in velocity.
The acceleration would be zero because the turtle is moving at a constant speed
That's because you are dividing a speed by a time. In the case of constant acceleration, acceleration can be calculated as (difference in velocity) / time. In fact, that's basically how acceleration is defined. The corresponding units are (meters / second) / second.
An acceleration is not a velocity - it is the rate of change of velocity. In SI units, the units of velocity are meters/second. Acceleration is the rate of change of velocity, per unit time - how fast the velocity changes. Therefore, its units are velocity / time. In SI units, this gives you (meters/second) / second, usually written as meters/second2.
For every second of acceleration the velocity is increased by that acceleration.
When a net force acts on that object, there is a change in velocity, and thus acceleration.
Acceleration of the arrow is -3m/s2A = (velocity minus initial velocity) / time
Acceleration is constant for any mass. It is 9.8m/s^2 (meters per second squared) everywhere on the earth, as measured from sea level.
If the acceleration is constant, yes. However, the acceleration of an object can vary. The rate of change of acceleration is called jerk.
When given a constant acceleration, just multiply it by time, t, to detemine the final velocity. If the initial velocity was zero (as is the case when you drop something), then the average velocity is half the terminal velocity.