what is the velocity of an object which moves from a position x=9 meters to a position x=8 meters in a time of 3 seconds
velocity= (finalposition-initialposition)/time
=(8-9)/3 meters/second
To calculate the velocity of an object, we need to use the formula:
Velocity = (Change in position) / (Change in time)
Given that the object moves from a position of x = 9 meters to x = 8 meters in a time of 3 seconds, we can calculate the change in position and the change in time.
Change in position (Δx) = final position - initial position
Δx = 8 meters - 9 meters
Δx = -1 meter
Change in time (Δt) = final time - initial time
Δt = 3 seconds
Now, we plug these values into the formula:
Velocity = (Change in position) / (Change in time)
Velocity = (-1 meter) / (3 seconds)
Simplifying this expression gives us:
Velocity = -1/3 meters per second
Therefore, the velocity of the object is -1/3 meters per second. The negative sign indicates that the object is moving in the opposite direction of the positive x-axis.