Explain Newton's second law of motion with suitable example?
Newton's second law of motion : According to this law, “ the force acting on a body is directly proportional to the rate of change of linear momentum of the body and the change in momentum takes place in the direction of the force ”. This law helps us to measure the amount of force. So, it is also called as ‘law of force’. Let, ‘m’ be the mass of a moving body, moving along a straight line with an initial speed ‘u’ After a time interval of ‘t’, the velocity of the body changes to ‘v’ due to the impact of an unbalanced external force F. Initial momentum of the body Pi = mu Final momentum of the body Pf = mv Change in momentum Δp =Pf–Pi...