Physics, asked by aashleylopezcystal44, 11 months ago

A North-going Zak has a mass of 50 kg and is traveling at 4 m/s. A South -going Zak has a mass of 40 kg and is traveling at 5 m/s. If they have a perfectly inelastic collision, what is their final velocity? What are the initial and final total kinetic energies?

Answers

Answered by sanyam75
4

Answer:

by linear momentum conservation

50 * 4 + 40 * 5 = 90 * v

(since rhey stick after collision)

v = 400 ÷ 90

initial kinetic energy = (50 *16)÷2 + (40 * 25)÷2

= 400 + 500= 900

final KE = (90 * 400 * 400)÷(90*90 *2)

= 8000÷9

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