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Momentum Anything which is moving has MOMENTUM. The amount of momentum it has depends on:-

Momentum Anything which is moving has MOMENTUM. The amount of momentum it has depends on:- MASS (kg) 2. VELOCITY (m/s). Which of the following have momentum?. The formula for momentum is:-. momentum = mass x velocity (kgm/s) (kg) (m/s). Find the momentum of the following

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Momentum Anything which is moving has MOMENTUM. The amount of momentum it has depends on:-

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  1. Momentum • Anything which is moving has MOMENTUM. • The amount of momentum it has depends on:- • MASS (kg) • 2. VELOCITY (m/s)

  2. Which of the following have momentum?

  3. The formula for momentum is:- momentum=massxvelocity (kgm/s) (kg)(m/s)

  4. Find the momentum of the following 1. 0.06 kg 30 m/s momentum = mass x velocity = 0.06 x 30 = 1.86 kgm/s

  5. 40 000 kg 20 m/s 2. momentum = mass x velocity = 40 000 x 20 = 800 000 kgm/s

  6. 3. 70 kg 1.5 m/s momentum = mass x velocity = 70 x 1.5 = 105 kgm/s

  7. 4. 1000 kg at rest momentum = mass x velocity = 1000 x 0 = 0 kgm/s

  8. Finding total momentum of 2 objects

  9. Objects travelling in same direction 3 kg 5 kg 10 m/s 5 m/s (3 x 10) + (5 x 5) 30 + 25 = 55 kgm/s

  10. Objects travelling in opposite direction 4 kg 6 kg 7m/s 2 m/s (4 x 7) - (6 x 2) 28 - 12 = 16 kgm/s

  11. Objects travelling in opposite direction 8 kg 3kg 2m/s 5 m/s (8 x 2) - (3 x 5) 16 - 15 = 1 kgm/s

  12. One object travelling towards an object at rest 20kg 10 kg 5m/s 0 m/s (10 x 5) + (20 x 0) 50 + 0 = 50 kgm/s +

  13. CONSERVATION OF MOMENTUM total momentum before collision or explosion total momentum after collision or explosion =

  14. TOTAL MOMENTUM BEFORE COLLISION = TOTAL MOMENTUM AFTER COLLISION

  15. TOTAL MOMENTUM BEFORE COLLISION = TOTAL MOMENTUM AFTER COLLISION

  16. What is the velocity of the diesel and flatcar after the collision?

  17. What is the combined velocity of the diesel and flatcar after the collision? Mass of flatcar = 10000kg Mass of diesel = 18000kg Velocity of flatcar before collision = 0m/s Velocity of diesel = 5m/s total momentum before = total momentum afterwards (18000 x 5) + 0 = 28000 x V 90000 = 28000 x V 90000 = V = 3.21 m/s 28000

  18. What is the combined velocity of car and van after the collision?

  19. What is the combined velocity of car and van after the collision? Mass of car = 1000 kg Velocity of car = 20 m/s Mass of van = 4000kg Velocity of van before collision = 0 m/s Momentum Before = Momentum afterwards (1000 x 20) + 0 = 5000 x V 20000 = 5000 x V 20000 = V = 4 m/s 5000

  20. What is the combined velocity of car and van after impact?

  21. What is the combined velocity of car and van after impact? Mass of car = 1000kg Velocity = 20 m/s Mass of van = 3000kg Velocity = 20 m/s Momentum before = Momentum afterwards (3000 x 20) – (1000 x 20) = 4000 x V 60000 – 20000 = 4000 x V 40000 = 4000 x V 40000 = V = 10 m/s 4000

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