Question

d. The initial and final velocities of a uniformly accelerated body are 20 ms and
60 ms. What is the average velocity?
Ans:​

Answer 1

your question:

The initial and final velocities of a uniformly accelerated body are 20 ms and

60 ms. What is the average velocity?

$\large \tt{solution}$

$\large \rm{ \orange{given }}$

$\rm{initial \: velocity(u) = 20 \frac{m}{s} }$

$\rm{final \: velocity(v) = 60 \frac{m}{s} }$

Now we know that,

the formula for average velocity is:

$\large \rm v_{av} = \frac{ (u + v)}{2}$

now by putting the values :

we get,

$\large \rm v_{av} = \frac{20 + 60}{2} = \frac{80}{2} = 40$

so average velocity is:

$\large \tt{40 \frac{m}{s} }$

$\rm \large { \orange{More \: to \: \: know:}}$

$\large \rm v_{av} = \frac{ (u + v)}{2}$

$\rm \large{ v_{av} = \frac{total \: distance}{total \: time}}$