Question

All moving bodies possess momentum and kinetic energy. Kinetic Energy of a Body of mass 4 Kg is 200 Joules. Calculate its momentum.

• A. 400 Kg m/s
• B. 100 Kg m/s
• C. 800 Kg m/s
• D. 40 Kg m/s

Answer 1

Answer:

D. 40 Kg m/s

Mass, m=4 kg K.E=200 J Momentum, P = mv K.E = 1/2 mv² v² = 2*200/4 =100 v=10 m/s Momentum, P = mv = 4*10 = 40 Kg m/s