Aperson starts at a position of 29 meters and finishes at a position of 2 meters. the trip takes 4.5 seconds. what is the person's average velocity? what is the person’s average speed?

Speed= 6 m/s

Velocity=-6 m/s or 6 m/s to the left

Explanation:

Speed is a scalar quantity and is always positive, while velocity is a vector; hence it must have a direction and a module (the speed).

In other words, the speed is the module of te velocity vector.

In this sense, average velocity and average speed are defined as:

(1)

Where is the object's variation in position and is the time

(2)

Where is the distance traveled and is the time of travel

Now, according to the given information, the person started at an initial position and finished at a final position .

This means the variation in position (assuming the person is moving along the X-axis or horizontally) is:

And

Then, the average velocity is:

(3)

(4) As we can see, the negative sign indicates the direction, which is to the left (or to the West if the person is traveling along a West-East highway, for example)

On the other hand, if we calculate the distance traveled by this person we have to take the difference between the two points:

As we know the time of travel is also , the average speed is:

(4)

(5)

iron would move it is magnetic there is a mag field around the current in the wire

hi,

what occurs during a solar eclipse?

there are small tides across earth.

the moon is between earth and the sun.

p.s. im not sure if the first answer is correct because during a solar ecliphse there are spring tides and i dont know if they are the same.