Those are all "acceleration", caused by
unbalanced forces acting on the object.
Hey Friends
The answer to this question would be C
Hope i helped
~Katie
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I believe this is right but double check to make sure :)
The velocity of the girl is -4.8 m/s.
Using the principle of conservation of linear momentum, The total momentum of bodies before and after collision is constant. Since the two objects are stationary, the initial momentum of each body is zero.
Thus;
0 = (80 × 3) + (50 × v)
0 = 240 + 50 v
-240 = 50 v
v = -240/50
v = -4.8 m/s
Note that the negative sign shows that the velocity of the girl is in opposite direction that that of the girl.
Learn more about momentum: brainly.com/question/904448
It is -59 i think or just ask someone esle for help
