Please, help me answer this question.
Two balls are moving in the same direction. Ball A has half the mass of ball B, and is moving at twice its speed.
(a) Which ball has the greater momentum?
(b) Which ball has greater kinetic energy?
Thank you
v₂=v₁/2,
m₂=2m₁.
p₁= m₁v₁,
p₂=m₂v₂=2m₁•v₁/2= m₁v₁=p₁.
KE₁=m₁v₁²/2,
KE₂=m₂v₂²/2=2m₁ •v₁²/4•2= m₁v₁²/4=KE₁/2.