Question

The mass of an object is 20 kg and moving with a velocity of 5 m/s. If its velocity is increased by 10 m/s . what is the percentage increase in momentum.​

Answer 1

Answer:

Mass=20kg

initial velocity=u=5m/s

final velocity=v=15m/s

initial momentum=mu=20×5=100kg.m/s

final momentum=mv=20×15=300kg.m/s

increased momentum=mv-mu=300-100=200kg.m/s

increased momentum in percentage=(200/100×100)%=200% Ans.

Answer 2

Answer:

Initial momentum = p1 = mV1

= 20×5

= 100 kg m/s

Final momentum = p2= mV2

= 20×10

= 200 kg m/s

Difference between final and initial momentum = 100 kg m/s ×100

% increase = difference between final and initial momentum ÷ initial momentum

100÷100×100

= 100%