Laws of momentum and motion 0.0 / 5 ? PhysicsMomentum and ImpulseASOCR Created by: AntoniadfCreated on: 03-04-17 13:14 Newton's 1st Law A body will remain at rest or continue moving at a constant speed unless acted on by a resultnat force. 1 of 9 Newton's 2nd Law The rate of change in momentum is directly proprotional to the resultant force and takes place in the direction of that force. 2 of 9 Newton's 3rd Law When 2 objects interact they each exert an equal and opposite force on the other. 3 of 9 Momentum A property of an object travelling in a straight line, the product of mass and velocity in (kgms-1) 4 of 9 The principle of conservation of momentum Total momentum of a system remains the smae before and after the collision. 5 of 9 Elastic In a perfectly elastic collision momentum is conserved as is total energy and so is total KE. 6 of 9 Inelastic In an inelastic collion total KE is not conserved. 7 of 9 Impulse The area underneath a force-time graph - the product of force and the tiem fro which it acts. 8 of 9 Force-time graphs A graph of net force against time with the area underneath equal to the impulse. 9 of 9
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