Identify the following as inelastic, elastic, or neither:
1.A basketball thrown off the top of a building falls onto a 3-meter-thick pile of feathers.
2.A basketball thrown off the top of a building falls onto a 3-meter-thick pile of wood.
3.A distracted driver who is texting runs into the car in front of him who is stationary at a red light
4.A football player from one team chases down the quarterback from the opposing team and tackles him to the
file:///storage/emulated/0/Download/astronauts%20(1).gif
Left astronaut:
m = 40 kg
v =_______m/s
p = 400 kg m/s
Right astronaut:
m = 50 kg
v = _________m/s
p = _________kg m/s
AFTER cluster of astronauts
m = ______kg
v = _______m/s *to tenths
p = _________kg m/s
3 answers
We will be happy to check your answers or thinking.
I need the answers
Well, there is a problem with that.
a) on the first, you need to know what the charactersistics of elastic and inelastic reactions are, and to argue the situations which is which. Giving answers wont make that type of mental reasoning for you.
b) The link you gave is not accessible for anyone but you. However, I suspect it is a conservation of momentum problem, you need to work thru that also. p=m*v
after the collision, the sum of the intial momentums is equal to the final momentum. Remember that velocity is a vector, so sign is important, as momentum p is a vector also.
a) on the first, you need to know what the charactersistics of elastic and inelastic reactions are, and to argue the situations which is which. Giving answers wont make that type of mental reasoning for you.
b) The link you gave is not accessible for anyone but you. However, I suspect it is a conservation of momentum problem, you need to work thru that also. p=m*v
after the collision, the sum of the intial momentums is equal to the final momentum. Remember that velocity is a vector, so sign is important, as momentum p is a vector also.