Average Velocity and resultant velocity

In summary, the hiker walks 65.1 km in a total of 20 hours, giving her an average velocity of 3.26 km/h. However, there is no resultant velocity in this scenario as the hiker's motions are not happening simultaneously.
  • #1
cherylrondo
3
0
A hiker begins a trip by first walking 25.0 km south east from her base camp in 8 hours. On the second day, she walks 40.0 km 60.0° north of east in 12 hours, at which point she discovers a forest ranger's tower.

Determine the average velocity of the hiker
Determine the resultant velocity of the hiker

I am confused wit the differences between resultant velocity and average velocity

Thank you
 
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  • #2
We speak of the resultant velocity when we have two (or more) motions happening simultaneously, when we know the velocity of one motion with respect to O (whatever this is), and the velocity of the second motion with respect to the first motion; then we can find out the velocity of the second motion with respect to O as its resultant velocity.

In your problem, however, I do not see any simultaneous motions.
 
  • #3
cherylrondo said:
A hiker begins a trip by first walking 25.0 km south east from her base camp in 8 hours. On the second day, she walks 40.0 km 60.0° north of east in 12 hours, at which point she discovers a forest ranger's tower.

Determine the average velocity of the hiker
Determine the resultant velocity of the hiker

I am confused wit the differences between resultant velocity and average velocity

Thank you
resultant velocity here apparently is the vector sum of the velocity vectors, although not simultaneously applied. Average velocity is total displacement over total time.
 

Related to Average Velocity and resultant velocity

What is average velocity and how is it different from resultant velocity?

Average velocity is the average rate at which an object changes its position over a certain amount of time. It is calculated by dividing the total displacement by the total time. Resultant velocity, on the other hand, takes into account both the magnitude and direction of the average velocity and other velocities acting on the object.

How is average velocity calculated?

Average velocity is calculated by dividing the total displacement of an object by the total time it took to travel that distance. The formula for average velocity is: average velocity = total displacement / total time.

What is the difference between average velocity and instantaneous velocity?

Average velocity is the overall rate of change of an object's position over a period of time, while instantaneous velocity is the rate of change of an object's position at a specific moment in time. Average velocity considers the entire motion of an object, while instantaneous velocity only looks at a specific point in time.

How is resultant velocity calculated in a two-dimensional motion?

In two-dimensional motion, resultant velocity is calculated by adding the vectors of the individual velocities in both the x and y directions. This can be done graphically or using trigonometric functions. The resultant velocity will have both a magnitude and direction, which can be represented by a single vector.

What factors can affect the resultant velocity of an object?

The resultant velocity of an object can be affected by the magnitude and direction of the individual velocities acting on the object, as well as external forces such as friction and air resistance. The shape and mass of the object can also impact the resultant velocity.

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