LAWS OF MOTION formula
Through Newton's second law, which states: The acceleration of a body is directly proportional to the net unbalanced force and inversely proportional to the body's mass, a relationship is established between Force (F), Mass (m) and acceleration (a). This is of course a wonderful relation and of immense usefulness.
F = m x a
Knowing any two of the quantities automatically gives you the third !!
Momentum (p) is the quantity of motion in a body. A heavy body moving at a fast velocity is difficult to stop. A light body at a slow speed, on the other hand can be stopped easily. So momentum has to do with both mass and velocity.
p = mv
Often physics problems deal with momentum before and after a collision. In such cases the total momentum of the bodies before collision is taken as equal to the total momentum of the bodies after collision. That is to say: momentum is conserved.
This is the change in the momentum of a body caused over a very short time. Let m be the mass and v and u the final and initial velocities of a body.
Impulse = Ft = mv - mu
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