what is 2 law of motin

Asked by shreyamishra270304 | 4th Aug, 2021, 08:32: AM

Expert Answer:

Newton's  second Law of motion is expressed  as follows :
 
The rate of change of momentum of a body is directly proportional to the applied force and
takes place in the direction in which the force acts .
 
Momentum of a body is product of mass and velocity
 
Let us assume a body of mass initially moving with velocity vi .
 
If a force F is acting on the body for a time Δt , then its momentum changes .
 
Let us assume velocity of body after applying force vf .
 
Change in momentum = m ( vf - vi )
 
Rate of change of momentum = [ m ( v- v) ] /  Δt 
 
Then according to Newton's second law , force F = [ m ( v- v) ] /  Δt 

Answered by Thiyagarajan K | 4th Aug, 2021, 08:59: AM