The maximum and minimum distances of a comet from the Sun are 1 . 6 × 10 12 m and 8 . 0 × 10 10 m respectively. If the speed of the comet at the nearest point is 6 × 10 4 m s - 1 , the speed at the farthest point is

Question

The maximum and minimum distances of a comet from the Sun are 1 . 6 × 10 12 m and 8 . 0 × 10 10 m respectively. If the speed of the comet at the nearest point is 6 × 10 4 m s - 1 , the speed at the farthest point is, 1 . 5 × 10 3 m s - 1, 6 . 6 × 10 3 m s - 1, 3 . 0 × 10 3 m s - 1, 4 . 5 × 10 3 m s - 1

MARKS App · Accepted Answer

By angular momentum conservation : m v 1 r 1 = m v 2 r 2 v 1 = 48 × 10 14 1 . 6 × 10 12 = 3000 m s - 1 = 3 × 10 3 m s - 1 .

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