Question

7. A body has an initial velocity of 100 ms' and uniform acceleration of 10 ms-2.The time in which velocity doubled is ​

Answer 1

Answer:

Therefore the time it will take to double the velocity is 10 sec

Explanation:

We are given the following data

Initial velocity      u=100  m/s

Acceleration of the body    $a=10 ms^{-2}$

Now we are given to find that the velocity should be doubled that means

Final velocity       v=200   m/s

So we will be using the formula $v=u+at$

$v=u+at\\200=100+10t\\\\\\100=10t\\t=\frac{100}{10} \\t=10 s$