Imagine a smooth tunnel along a chord of non- rotating earth at a distance R 2 from the centre. R is the radius of the

[answerhappygod]

Imagine a smooth tunnel along a chord of non-
rotating earth at a distance
R
2 from the centre.
R is the radius of the earth. A projectile is fired
along the tunnel from the centre of the tunnel at a
speed V g o R [g is acceleration due to gravity
at the surface of the earth].
(a) Is the angular momentum [about the centre
of the earth] of the projectile conserved as it
moves along the tunnel?
(b) Calculate the maximum distance of the
projectile from the centre of the earth during
its course of motion.