A body moving along a straight line has an initial velocity of v0 and a constant acceleration of a. The average velocity of the body during the displacement x is vav. Then the change of velocity of the body over the same interval is
Answers
Answer:
As the word states, Average Velocity is the average value of the known velocities. Displacement over total time is Average Velocity. The average speed of an object is described as the distance travelled divided by the time gone. A velocity is a vector unit, and average velocity can be described as the displacement divided by the time. The units for velocity can be understood from the definition to be meters/second or in common any distance unit over any time unit. The average speed of a body is described as the distance covered divided by the time elapsed.
It is useful in determining the average value of speed if the body is varying continuously for the given time intervals.
Average Velocity Formula -1
It is known as Vav. Average Velocity Formula fluctuates based on the given problem.
Average Velocity Formula -2
If any distances xi and xf with their corresponding time intervals ti and tf are given we use the formula
Average Velocity Formula -3
Where
xi = Initial Distance
xf =Final distance
ti = Initial time
tf = Final time
If final Velocity V and Initial velocity U are known, we make use of the formula
Where,
U = Initial Velocity and
V = Final Velocity.
If there are diverse distances like d1, d2, d3 ……. dn for diverse time intervals t1, t2, t3,… tn then
Average Velocity Formula -4
Average Velocity Problem
Problem 1: A car is moving with an initial velocity of 30 m/s and it touches its destiny at 80 m/s. Calculate its average velocity.
Answer:
Given: Initial Velocity U = 30 m/s
Final velocity V = 80 m/s
Average Velocity Formula -3
Average velocity Vav = (30 + 80)/2
Average velocity Vav = 55 m/s