Answer:
Speed of Halfback is 9 m/s
Speed of Tight end is 6 m/s
greatest momentum is for Halfback which is equal to 720 kg m/s
Explanation:
As we know that the ticker tape diagram is shown in the figure
Here each tick is regarding the displacement in 1 s
the velocity of lineman is given as 3 m/s
So here we can see that position of lineman after 2 s is same as position of tightend after 1 s
So displacement of tightend after t = 1 s is given as d = 3(2) = 6 m
so velocity of tightend is v = 6 m/s
Similarly the position of lineman after 3 s is same as position of halfback after 1 s
So displacement of halfback after t = 1 s is given as d = 3(3) = 9 m
so velocity of halfback is v = 9 m/s
Now momentum of lineman is given as
[tex]P_{line} = 120(3) = 360 kg m/s[/tex]
momentum of halfback is given as
[tex]P_{line} = 80(9) = 720 kg m/s[/tex]
momentum of tightend is given as
[tex]P_{line} = 100(6) = 600 kg m/s[/tex]
So greatest momentum is for Halfback which is equal to 720 kg m/s