Question

entron moving with a certain kinetic energy collides hand

A steel sphere of mass 100 gm moving with a velocity of 4 m/s collides with a dust particle elastically
moving in the same direction with a velocity of 1 m/s. The velocity of the dust particle after the
4) 4 m/s and 8 ms
m/s
a
collision is
1) 8 m/s
2) 7 m/s
3) 6 m/s
4) 9 m/s​

Answer 1

Answer:

4 is the correct answer gahahahha