Question

A projectile is fired vertically from the Earth with a velocity
kvₑ where vₑ is the escape velocity and k is a constant less
than unity. The maximum height to which projectile rises,
as measured from the centre of Earth, is
(a) R/k
(b) R/k-1
(c) R/1-k²
(d) R/1+k²

Answer 1

Explanation:

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