Someone asks: Can a bullet have the same momentum as a truck? You would be right if you said which one or more of the following:
a. Yes, and if so they will both impart the same impulse in a 2-to-1 interaction.
b.No, because the bullet's mass is so much smaller.
c.Yes, by having a higher velocity than the truck.
d.Yes, but only if the impulse imparted to the bullet was larger.
2007-12-06 06:57:45 · 4 answers · asked by Nicky 1 in Science & Mathematics ➔ Physics
the answer is c because......
Truck p=mv p=(1000kg)(20m/s) = 20000 kg.m/s
bullet p=mv if Ptruck is same as Pbullet then
Pbullet=20000 so using p=mv (20000)=(0.3)v
v=(20000)/(0.3)
v=66 666m/s
theoretically the momentum's can be the same but the bullet would have to be moving VERY fast
2007-12-06 07:11:17 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Yes.
a) Yes, if I've understood the Q
b) No
c) Yes (assuming the bullet has a smaller mass than the truck. Well, don't take anything for granted)
d) No
2007-12-06 16:31:29 · answer #2 · answered by za 7 · 0⤊ 0⤋
In theory yes but in practice no becasue not even bullets are fired fast enough,
2007-12-06 15:30:06 · answer #3 · answered by KeplJoey 7 · 0⤊ 1⤋
I think (d) is correct, but I also think you can't get a bullet to go that fast.
2007-12-06 15:34:50 · answer #4 · answered by Anonymous · 0⤊ 1⤋