Question

Newton's second law of motion gives the .............

definition of force

unit of force

nature of force

none of the above​

Answer 1

Definition of force

Answer 2

definition of force

Step-by-step explanation:

It states that "the rate of change in momentum is proprtional to the force applied"

`{ \rm{momentum = mass * velocity}} \\`

• from the law stated:

`{ \rm{ ( \delta momentum)/(time) = force}} \\ \\ { \rm{ (mv - mu)/(time) = force}} \\ \\ { \rm{ (mass(v - u))/(time) = force}} \\ \\ { \rm{mass * ((v - u))/(time) = force }}`

• from first newton equation:

`{ \boxed{ \tt{ (v - u)/(t) = acceleration}}} \\`

• therefore

`{ \rm{mass * acceleration = force}} \\ \\ { \boxed{ \rm{force = mass * acceleration}}}`

• v is final velocity
• u is initial velocity
• t is time