Question

THE MASS OF AN OBJECT IS 10 Kg.IF ITS VELOCITY CHANGES FROM 10 m/s TO 20 m/s THEN THE CHANGE IN MOMENTUM IS EQUAL TO --
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Answer 1

Step-by-step explanation:

ANSWER

Given , Mass of object  ,m=10 kg

Velocity of object , v=20ms−1

Initial Kinetic energy , K1=21×10×202=2000 J

Now Final mass  ,m2=20 kg

Final Velocity , v2=10m/s

Final Kinetic energy , K2=21×20×102=1000 J

Required Ratio=K2K1=10002000=2