NEET Sample Paper NEET Sample Test Paper-1

  • question_answer
    Two racing car of masses \[{{m}_{1}}\] and \[{{m}_{2}}\] are moving in a circle of radius \[{{r}_{1}}\] and \[{{r}_{2}}\]respectively their speeds are such that each makes a complete circle in the same time t the ratio of the angular speed of the first to the second car will be:

    A)  \[{{m}_{1}}{{m}_{2}}:{{r}_{1}}{{r}_{2}}\]                

    B)  \[1:1\]

    C)  \[{{m}_{1}}:{{m}_{2}}\]               

    D)  \[{{r}_{1}}:{{r}_{2}}\]

    Correct Answer: B

    Solution :

    Mass of first running car \[={{m}_{1}}\] Mass of second running car \[={{m}_{2}}\] Radius of the first circle \[={{r}_{1}}\] Radius of the second circle \[={{r}_{2}}\] As we know that both the cars takes some time to complete the circle, i.e., both have same time period. Therefore, the ratio of the angular speeds of car will be\[1:1\].

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