Please, help me answer this question.

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

Answer 1

momentum is mass*velocity

momentumA=M/2*2V=MV
momentumB=MV

they have the same momentum
KE=1/2 m v^2
KEA=1/2 m/2*(2v)^2=mv^2
KEB=1/2 m *v^2=1/2 mv^2

Answer 2

please help me this question

Answer 3

please