Average Velocity formula with Sample Problems

Average Velocity formula :

Average Velocity formula Vav(m/s) in meter per second is equal to the Final distance xf(m) in meter and minus the initial distance xi(m) in meter and divided by the Final time tf(s) in second minutes  initial time ti(s) in second. Hence the Average Velocity Formula can be written as,

Vav(m/s)=xf(m) – xi(m) / tf(s) – ti(s)

Where,

xi → initial Distance in mm, cm, m

x→ Final Distance in  mm, cm, m

ti → initial time second

tf→ Final time second

If final velocity v and initial velocity u are known , we make use of the formula,

Vav=U+V/2

Where,

U→ Initial velocity m/s

V→ Final velocity m/s

If there are diverse distance like d1,d2,d3……………dn for diverse time intervals t1,t2,t3………….tn then

Vav= d1+d2+d3……………dn / t1 +t2 +t3………….tn

Sample Problems :

Problem1 :

Calculate its average velocity? In a car is moving with an initial velocity of 40m/s and it touches its destiny at 50m/s.

Solution :

Given initial velocity U=40m/s

Final velocity  v=50m/s

Average Velocity Vav=U+V/2

Vav=(40+50)/2

Vav=65m/s

Problem2 :

Calculate its average velocity? In a car is moving with an initial velocity of 10m/s and it touches its destiny at 80m/s.

Solution :

Given initial velocity U=10m/s

Final velocity  v=80m/s

Average Velocity Vav=U+V/2

Vav=(10+80)/2

Vav=85m/s

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