C-Momentum, Impulse, Work, Energy And Power Flashcards
1
Q
Define momentum, vector or scalar
A
The product of the mass and velocity of the object , vector
2
Q
State Newton’s second law in terms of momentum
A
The net force acting on an object is equal to the rate of change of momentum
3
Q
Explain isolated/closed system
A
One that has no net external force acting on it
4
Q
State the law of conservation of linear momentum
A
The total linear momentum of an isolated system remains constant or is conserved
5
Q
Define an elastic collision
A
A collision in which both momentum and kinetic energy are conserved
6
Q
Define an inelastic collision
A
A collision in which only momentum is conserved
7
Q
Define impulse, vector or scalar?
A
The product of the net force and the contact time , vector
