Question

the the velocity of particle at any instant is 10 M per second after 5 second the velocity of particle is 20 m per second the velocity at 3 second before is

Answer 1

Hii..
Here is your answer..

Solution:-
Initial velocity(u)=10m/s
Final velocity(v)=20m/s
Time =5 sec

Now,
We'll find Acceleration then will find the answer by using equation:-
$= > v = u + at \\ = > 20 = 10 + a5 \\ = > 2 0 - 10 = a5 \\ = > 10 = a5$
$= > a = \frac{10}{5} \\ = > a = 2$
Now,
Velocity before 3 second=
$= > 3 \times 2 \\ = > 6m \: per \: sec$
=>6m/s

Hope it helps uh....✌️✌️✌️