Question

a steel spehereof mass 100gm moving with a velocity of 4m/s collides with a dust particle drastically moving in the same direction with a velocity of 1m/s.the velocity of the dust particles after collision is​

Answer 1

Answer:

400 is very much correctly answer

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Answer 2

Answer:

7m/s

Explanation:

mass=100gm=0.1kg

u1=4m/s

u2=1m/s

velocity of dust particle=?

Vd=(2mv-m)/m

    =(2*0.1*4-0.1)/0.1

   =8-1

Vd=7m/s