a 4kg object traveling west a 25 m/s hots a 15 kg object at rest. the 4 kg object bounces eastward at 8 m/s. what is the speed and direction of the 15 kg object.
i set it up at
(m1)(v1)+(m2)(v2)= (mtotal)(vfinal)
100/ 19 = x
5.26 = x
except i solvedfor the final v
IM STUMPED...
i have 3 problems for homework and I am stomped. i don't know if the way I am solving the problem is right. I am using the FT=MV forumla for all 3 problems.
1) a football player of mass 120 kg is traveling at 20 m/s collides with another player and comes to rest in 1.5 s. what is the force...