Jerome plays middle linebacker for South's varsity football team. In a game against cross-town rival North, he delivered a hit to North's 82-kg running back, changing his eastward velocity of 5.6 m/s into a westward velocity of 2.5 m/s.
a. Determine the initial momentum of the running back.

b. Determine the final momentum of the running back.

Question

Jerome plays middle linebacker for South's varsity football team. In a game against cross-town rival North, he delivered a hit to North's 82-kg running back, changing his eastward velocity of 5.6 m/s into a westward velocity of 2.5 m/s.
a.	Determine the initial momentum of the running back. 




b. Determine the final momentum of the running back.

anonymous · Answer

It's B

anonymous · Answer

a.	Determine the initial momentum of the running back. 
82kg X 5.6 m/s

459 kgm/s 


b. Determine the final momentum of the running back. 
82kg X 5.6 m/s

205kgm/s
 this is what i got

anonymous · Answer

Seeing how its rather simple i dont think i did anything wrong just wanting to make sure

anonymous · Answer

got to take a final tomorrow

anonymous · Answer

Momentum is given by:$$p=mv$$where p is momentum; m is mass; and v is velocity.  Note that both momentum and velocity are vectors, so your answers will have to be vectors or have a direction, i.e. units of momentum in east direction or units of momentum in west direction.