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Sahay Sir > Question Answers > Cengage JEE Mains Physics by B.M Sharma > Chapter 9 - Rotational Dynamics > In the figure shown, a ball without sliding on a horizontal surface. It ascends a curved track up to a height h and returns. The value of h is h1 for sufficiently rough curved track to avoid sliding and is h2 for smooth curved track, then.

In the figure shown, a ball without sliding on a horizontal surface. It ascends a curved track up to a height h and returns. The value of h is h1 for sufficiently rough curved track to avoid sliding and is h2 for smooth curved track, then.

In the figure shown then the initial angular acceleration of the board is: (Neglect weight of board) thereby destroying balance Three children are sitting on a see-saw in such a way that it is balanced. A 20kg and a 30kg boy are on opposite sides at a distance of 2m from the pivot. If the third boy jumps off