Which of the following is a vector quantity:
选项:
A:speed;
B:time;
C:acceleration;
D:mass
发布时间:2024-05-15 19:04:34
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By computing the area under the acceleration vs. time graph for a fixed time interval of an object’s motion, what quantity has been determined for that object?
选项:A、The average velocity during the time interval
B、The velocity at the end of the time interval
C、The average speed during the time interval
D、The change in velocity during the time interval
E、The velocity at the time midway through the time interval