8. Momentum Flashcards
1
Q
Momentum
A
- Linear momentum is a vector quantity, having the same
direction as the velocity. - The units of momentum are Ns
2
Q
Formula for Momentum
A
- Momentum = mass × velocity
- p = mv
3
Q
Principle of conservation of linear momentum
A
When bodies in a system interact, total momentum remains constant provided no external force acts on the system.
4
Q
When both particles A and B move in the same direction
A
mAuA + mB uB = mAvA + mB vB
5
Q
When both particles A and B move towards each other
A
mAuA − mB uB = mAvA + mB vB
6
Q
When both particles stick together, their velocity becomes the same after impact and can be considered as a single particle with a combined mass.
A
mAuA + mB uB = (mA + mB )v
