Question

Please answer 4 all questions

Answer 1

$\huge\bold\color {green}{Hello \: Friend \: !!}$


$\red {\bold {Here \: is \: your \: Answer}}$




$\underline\bold {Question \: No : 25}$



$\green {\bold {25) Answer : 3 : 2}}$


Explanation :-

F1 = m × a

F1 = m × (v - u / 2)

F1 = -mu / 2



F2 = m × a

F2 = m × (v - u / 3)

F2 = -mu / 3

F1 / F2 = -mu / 2 × 3 / -mu

F1 / F2 = 3 / 2


$\underline\bold {Question \: No : 26}$



$\green {\bold {26) Answer : the \: same}}$




↪ In a given medium, frequency is same always or it is always constant.



$\underline\bold {Question \: No : 27}$



$\green {\bold {27) Answer : Sea \: is \: denser \: than \: river}}$



↪ When a loaded boat enters into a sea from river, it rises because sea is denser than river.

↪ Denser medium exerts more buyoncy force, as a result the boat rises.



$\underline\bold {Question \: No : 28}$


$\green {\bold {28) \: Answer : Zero}}$


↪ As it is a frictionless surface, no force is required to keep the object in motion



$\mathbb {\huge {\bold{Hope \: It \: Helps}}}$