Question

a body mass 100kg moving with velocity of 40m/s increases its velocity to 80m/s when a force of 10000N is applied on the object find the time taken by the body​

Answer 1

Answer:

1st may I know this class this part is from

Answer 2

Information given:

Mass=100kg

Initial velocity= 40m/s

Final velocity= 80m/s

Force applied= 10000N

We have to find the time taken by the body to increase the velocity of the body

Using Newton's Second Law of Motion

F=ma

$= > f = m\times ( \frac{v - u}{t} ) \\ = > 10000 = 100 \times ( \frac{80 - 40}{t} ) \\ = > \frac{10000}{100} = \frac{40}{t} \\ = > 100 = \frac{40}{t} \\ = > t = \frac{40}{100} \\ = > \: t = \frac{2}{5}$

Therefore, t = 0.4 s