Which of the following potential energy curves in Figure cannot possib

1.	Which of the following potential energy curves in Figure cannot possibly describe the elastic collision of two billiard balls? Here r is the distance between the centres of balls.
Answer» The potential energy of a system of two masses varies inversely as the distance (r) between them i.e. V(r) < \(\frac{1}{r} \) When the two balls touch each other, PE becomes zero i.e. at r – R + R = 2R , v (r) = 0. Out of the given graphs only the curve (V) satisfies these two conditions.

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

Answer»

The potential energy of a system of two masses varies inversely as the distance (r) between them i.e.

V(r) < \(\frac{1}{r} \) When the two balls touch each other, PE becomes zero i.e. at r – R + R = 2R , v (r) = 0. Out of the given graphs only the curve (V) satisfies these two conditions.

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

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