Question

How do you do this? My teacher is the worst and I need to know how to solve these. Just help me solve the first one. Thanks!!

Answer 1

mom conserved

2x1-2x2= -2 kgm/s before

-1x1+v?x2 = 2v-1 after

-2=2v-1

-1=2v

v=-1/2m/s

the 2kg mass keeps going, the 1kg mass bounces off it

if you bump into someone heavier than you, you go flying ???