Question

girl of mass 40 kilograms with the horizontal velocity of 5 metre per second into stationary card with reflection and best deals the mass of the Cottage 3 kilogram what is the velocity as the court judge starts moving assuming that there is no on external unbalanced force working in the horizontal direction​

Answer 1

Answer:

4.65m/s is the answer

Explanation:

here's how it is

mass1=40kg

mass2=3kg

initial velocity 1=5m/s

initial velocity 2=om/s

m1u1+m2u2=m1v1+m2v2

after interaction of second body, the mass is 43kg

40*5+3*0=43*v

200=43*v

v=200/43

v=4.65m/s