Asked by Jon
9)Which has more momentum? A .1 kg toy truck moving at 1012 m/s or a real 2200 kg truck moving at .046 m/s?
The real truck since it has more mass
10)A 120 kg football player tries to dive into the endzone at 7.5 m/s to score a touchdown. A 150 kg player dives out of the endzone into the other player at 5 m/s to try and stop him. They collide at the goalline and the tackler holds on to the player diving into the endzone. Does the player score a touchdown or not?
I'm gonna go with yes
The real truck since it has more mass
10)A 120 kg football player tries to dive into the endzone at 7.5 m/s to score a touchdown. A 150 kg player dives out of the endzone into the other player at 5 m/s to try and stop him. They collide at the goalline and the tackler holds on to the player diving into the endzone. Does the player score a touchdown or not?
I'm gonna go with yes
Answers
Answered by
drwls
Momentum is M*V. Are you aware of that? Have you done the numbers?
The toy truck's momentum is 101.2 kg m/s
The real truck's momentum is 101.2 kg m/s
They are the same.
As for the football question, explain why you chose "touchdown".
The toy truck's momentum is 101.2 kg m/s
The real truck's momentum is 101.2 kg m/s
They are the same.
As for the football question, explain why you chose "touchdown".
Answered by
Jon
b/c the 120 guy is going faster
Answered by
Jon
yes I did the numbers how did you get:
The toy truck's momentum is 101.2 kg m/s
The real truck's momentum is 101.2 kg m/s
The toy truck's momentum is 101.2 kg m/s
The real truck's momentum is 101.2 kg m/s
Answered by
drwls
The MOMENTUM of the runner, 120*7.5 = 900 kg m/s, exceeds the momentum of the tsacker in the opposite direction, 50*150 = 750 kg m/s
The net momentum will carry then forward when they are "stuck" together at the goal line.
The net momentum will carry then forward when they are "stuck" together at the goal line.
Answered by
drwls
Momentum is M V. I multiplied M times V.
Answered by
drwls
tsacker = tackler
Answered by
Jon
so they both stop exactly at the goalline or he scores? from what you said he scores
Answered by
Jon
I did the wrong numbers. I changed it to Newtons
Answered by
drwls
I said "The net momentum will carry then forward when they are "stuck" together at the goal line."
Forward means across the goal line. Yes, it's a touchdown.
Forward means across the goal line. Yes, it's a touchdown.
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