Which of the following potential energy curves in Fig. 6. 18 cannot describe the elastic collision of two billiard balls? Here r is the distance between centres of the balls.

Which of the following potential energy curves in Fig. 6. 18 cannot de

1.	Which of the following potential energy curves in Fig. 6. 18 cannot describe the elastic collision of two billiard balls? Here r is the distance between centres of the balls.
Answer» SOLUTION :All EXCEPT (V) are IMPOSSIBLE.