using conservation of momentum

Question 1

in a closed system… total momentum before an event is equal to what

Answer 1

total momentum after

Question 2

steps for momentum questions

Answer 2

• calculate the momentum of both objects separately
• add the momentums together
• that is also the momentum after because the momentum is conserved

Question 3

example of conservation of momentum question

Answer 3

example… calculate velocity of the van and car

mass of van= 1400
velocity of car= 20
mass of car= 1000

1. 1400*20= 28,000
2. 1000*0= 0
3. momentum= 28,000
4. velocity= 28,000/2400
5. velocity= 11.67 (92d.p)