The average velocity of the body is 18 m/s and final velocity is 20 m/s then the initial velocity of the body is
Answers
Formula :
Average velocity = ( Initial velocity + final velocity ) / 2
Given :
average velocity = 18 m/s
final velocity = 20 m/s
Calculate the initial velocity
18 m/s = ( initial velocity + 20 m/s ) / 2
= > 2 × 18 m/s = initial velocity + 10 m/s
= > initial velocity = 36 m/s - 20 m/s
= > initial velocity = 16 m/s
ANSWER :
16 m/s is the initial velocity .
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Solution:
It is given that, average velocity of a body is 18 m/s and final velocity is 20 m/s.
We've to calculate its initial velocity.
We know that,
Putting the values,
18 =
18 × 2 = 20 + initial Velocity
36 = 20 + initial Velocity
36 - 20 = initial Velocity
Hence, initial velocity of the body is 16 m/s.
Velocity : It is the displacement covered in per unit time.
Mathematically,
Velocity = Displacement/time
S.I unit of velocity is meter per second.
It is a vector quantity.