Space Time & Motion A.2 Forces & Momentum (id: 1c37f887f)

本题目来源于试卷: Space Time & Motion A.2 Forces & Momentum，类别为 IB物理学

[单选题]
A stationary object explodes and splits into two parts of masses m and 2m. Mass m moves north with a velocity of 2v and mass 2m moves south with a velocity of v. Calculate the total change in linear momentum of the system as a result of the explosion.

A. zero
B. 1.5mv
C. 4mv
D. 6mv


参考答案:  A


本题详细解析:
$\underline{\text{Explanation}}$: 
The change in the momentum of the systems in explosions is zero, as the system is isolated and momentum is conserved.

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