Space Time & Motion A.3 Work Energy and Power (id: 36684976b)

本题目来源于试卷: Space Time & Motion A.3 Work Energy and Power，类别为 IB物理学

[单选题]
A motorised toy car starts from rest, with the motor delivering increasing power to the car over time as shown in the graph below.


Assuming no energy losses, which of the following gives the kinetic energy of the car after 8.0 seconds?

A. $0.2J$
B. $5.0J$
C. $160J$
D. $320J$


参考答案:  C


本题详细解析:

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