Mom En Tum

• a

• b

• c

• d

A cannon ball of mass 4.0 kg is fired from a stationary 96 kg cannon at 120 m/s. Calculate the velocity of the cannon immediately after firing.

• +5 m/s

• -5 m/s

• -120 m/s

• -8 m/s

Put these into groups

Groups:

(a) Scalar

,

(b) Vector

• displacement

• Energy

• Power

• Speed

• Distance

• Force

• acceleration

• Weight

• Momentum

• velocity

• Time

What does conservation of momentum mean?

• All objects have momentum

• Momentum must be transferred to the surroundings

• 
  Total momentum before is equal to total momentum after

• 
  Total momentum before is less than to total momentum after as some dissipated

What is the momentum of a system at rest? _Kg m/s

What does mv - mu represent?

• initial momentum

• final momentum

• change in momentum

• change in velocity

What is the average momentum of a 3 Kg bowling ball whose velocity time graph looks like this? ___Kg m/s

A 4 Kg ball has this displacement time behaviour. What is the momentum of the ball? ___Kg m/s

A 4 Kg ball has this displacement time behaviour. What is the momentum of the ball? ___Kg m/s

What object gives this force vs extension graph