CUET Preparation Today
Consider a marble rolling on a perfectly smooth surface with a uniform velocity. Which of the following is true ? |
It will come to rest after some time. External force is needed to keep rolling the marble. External force is needed to stop rolling the marble. Both (b) and (c). |
External force is needed to stop rolling the marble. |
By Inertia of Motion, the marble will continue to run on the smooth surface until and an external force acts on it and changes its state of uniform motion. |
