Question

which law of motion gives the measures of force

Answer 1

Hey Your answer is '2nd law of motion'.

Answer 2

Hello friends!!

Nice question..

Here is ur answer :

Second law of motion gives the measure of force.

It states that " rate of change of momentum is directly proportional to force acting on body".

Consider a body of mass 'm' is moving with initial velocity 'u' and after time 't' final velocity of body is 'v' and force acting on body is 'F'.

Initial momentum = Mass × velocity

= mu

Final momentum = Mass × velocity

= mv

Change in momentum

= Final momentum — Initial momentum

= mv — mu

= m ( v — u )

Rate of change of momentum

$\frac{m(v - u)}{t}$


According to statement,

F is directly proportional to

$\frac{m(v - u)}{t}$



Force is directly proportional to

$m \times \frac{(v - u)}{t}$



$\frac{(v - u)}{t} = a$



a is acceleration.

Force is directly proportional to m × a

F = kma

Value of k = 1

Force = ma

Force = mass × acceleration.

S. I. Unit of Force is NEWTON (N).



HOPE IT HELPS YOU..