Download presentation
Presentation is loading. Please wait.
1
Why can’t it stop easily ??
HARD TO STOP 2. It is FAST 1. It is MASSIVE IT has a lot of MOMENTUM John Parkinson
2
MOMENTUM John Parkinson
3
MOMENTUM = MASS VELOCITY X p = m v John Parkinson
4
UNITS of MOMENTUM Mass x velocity = kg x m s-1 = kg ms-1 ©
John Parkinson
5
m = 150 000 tonnes v = 25 knots = 12.5 m s-1 p = ?
kg x 12.5 ms-1 = kg ms-1 QM2 = x 109 Kgm/s m = 650 kg v = 200 mph = 89 m s-1 p = ? 650 kg x 89 ms-1= kg ms-1 Ferrari F1 = x 104 Kgm/s John Parkinson
6
THE PRINCIPLE OF CONSERVATION OF MOMENTUM
The total MOMENTUM of a system is CONSERVED, providing no external forces are acting on it. John Parkinson
7
VECTORS H A V E MAGNITUDE A N D D I R E C T I O N
8
Note that the 4 kg ball was moving to the left initially
BANG ! 2kg 2ms-1 4kg 4ms-1 4kg 4ms-1 2kg 2ms-1 2kg 2.5ms-1 4kg x = ? = MOMENTUM BEFORE MOMENTUM AFTER By the Principle of Conservation of Momentum 2 x x (-4) = x (-2.5) x = x x = m s-1 Note that the 4 kg ball was moving to the left initially John Parkinson
9
John Parkinson
10
John Parkinson
11
John Parkinson
12
John Parkinson
13
John Parkinson
14
John Parkinson
15
John Parkinson
16
John Parkinson
17
John Parkinson
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.