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Chapter 4 Motion in a plane Solutions

Question - 31 : - (a) Show that for a projectile, the angle between the velocity and the x-axis as a function of time is given by
(b) Show that the projection angle θo for a projectile launched from the origin is given by
where the symbols have their usual meaning.

Answer - 31 : -

(a) Let a projectile fired at an angle 0 with x-axis.
As θ depends on t, θ(t), at any instant,

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