Question

a. As the sailor jumps in forward direction, the boat moves backward direction. Why?
b. Which law behind this? State the law.
c. Derive F=ma
......Plz answer......it's urgent.....

Answer 1

Newtons Third law
I hope that it will help you please like me

Answer 2

$\textbf{ Hello Mate! }$

a. A sailar jumps in forward direction but boat moves backward dierection because the sailor exerts force on boat by pushing it back and as a $\textbf{ reactionary motion }$ boat pushes sailor forward and enables sailor to jump forward.

b.$\textbf{ Newton's Third Law }$ is responsible for this fact which states that every action and has an " equal and opposite reaction between two bodies. "

c. Now, we know

Force = Rate of change in momentum / Time taken

$p \: (momentum)= mass \times velocity \\ Force = \frac{mv - mu}{t - 0} \\ F = \frac{m(v - u)}{t}$
As, a = ( v - u ) / t

So,

$Force = ma$

Hence drived.

$\textbf{ Have great future ahead! }$