At the starting point and whenever you return to the starting point.
The average velocity has two parts to it: The average speed and the average direction. The average speed is: (the distance you travel between 0 and 3 seconds) divided by (3). The average direction is: the direction from (the place where you started at 0 seconds) to (the place where you finished at 3 seconds).
There are several definitions. not just one. Average velocity in a direction = Average displacement (distance) in that direction/time Instantaneous velocity in a direction = derivative of displacement in that direction with respect to time Average velocity in a direction = Initial velocity in that direction + Average acceleration in that direction * time Instantaneous velocity in a direction = Definite integral of acceleration in that direction with respect to time, with initial velocity at t = 0 Then there are others in which time is eliminated.
Average Velocity = change in position/change in time V = 35.2 m - 0 m/6.7 s - 0 s 4.8 m/s
what is the change in speed or velocity? average acceleration will be change in speed or velocity divided by time taken (4 seconds in ur case)
velocity is a vector and speed is scalar. Velocity has magnitude and directions, with magnitude being speed. The magnitude of average velocity and average speed is the same.
The correct term is velocity, not velocity.There is no reason why an object cannot have 0 velocity and 0 average speed - relative to some fixed reference point. I assume that your school, for example, has 0 velocity and 0 average speed.
The average velocity has two parts to it: The average speed and the average direction. The average speed is: (the distance you travel between 0 and 3 seconds) divided by (3). The average direction is: the direction from (the place where you started at 0 seconds) to (the place where you finished at 3 seconds).
Ok, lets start with the idea that: Average Rate per second = Average Velocity Average Velocity = Change in distance/Change in time = (d2-d1)/(t2-t1) Now lets define our variables and solve for the Average Velocity: d1 = 0 m d2 = 100 m t1 = 0 s t2 = 9.86 s Average Velocity = Change in distance/Change in time = (100 m - 0 m)/(9.86 s - 0 s) = 10.14 m/s<---This is the average velocity in m/s. The reason this is the Average Velocity or Average Rate per second is because in the calculations above we didn't account for positive and negative acceleration that may have occured during the measurement of this information. Alex
There are several definitions. not just one. Average velocity in a direction = Average displacement (distance) in that direction/time Instantaneous velocity in a direction = derivative of displacement in that direction with respect to time Average velocity in a direction = Initial velocity in that direction + Average acceleration in that direction * time Instantaneous velocity in a direction = Definite integral of acceleration in that direction with respect to time, with initial velocity at t = 0 Then there are others in which time is eliminated.
Average Velocity = change in position/change in time V = 35.2 m - 0 m/6.7 s - 0 s 4.8 m/s
For the instantaneous value of average velocity, average speed and average velocity are equal.
what is the change in speed or velocity? average acceleration will be change in speed or velocity divided by time taken (4 seconds in ur case)
Velocity is speed and its direction. Average velocity is average speed and its direction.
It depends on the sign of velocities. For example, if there are two velocities 7 and -7 m/s then the average velocity of the molecules will be 0. But, the square will be 49. The general thing here is that even if a velocity is negative, the square of EVERY velocity irrespective of the sign is positive i.e., squaring always removes the negative sign.
When the velocity is zero at the crossing of the time axis, the displacement must be a full maximum or minimum. Scroll down to related links and look at "Displacement - Velocity- Acceleration".
Always.
Average velocity is def.ined as the ratio of total displacement to total time taken.