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System of Particles and Rotational Motion
  1. Two racing cars of masses m and 4m are moving in circles of radii r and 2r respectively. If their speeds are such that each makes a complete circle in the same time, then the ratio of the angular speeds of the first to the second car is
    1. 8 : 1
    2. 4 : 1
    3. 2 : 1
    4. 1 : 1
Correct Option: D

We know that both the cars take the same time to complete the circle, therefore ratio of angular speeds of the cars will be 1 : 1.


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