Asked by Kathy
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.
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.
Answers
Answered by
Henry
Ball B.
Momentum = m*V.
Ek = 0.5m*V^2.
Ball A:
Momentum = (m/2)*2V = m*V.
Ek = 0.5m*V^2
a. Their momentum is equal.
b. Their kinetic energy is equal.
Momentum = m*V.
Ek = 0.5m*V^2.
Ball A:
Momentum = (m/2)*2V = m*V.
Ek = 0.5m*V^2
a. Their momentum is equal.
b. Their kinetic energy is equal.
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