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Shown are several curves (Fig (a), (b), (c) ,(d), (e) and (f), Explain with reason which ones amongst them can be possible trajectories traced by a projectile (neglect air friction)

(a) 

(b) 

(c) 

(d) 

(e) 

(f) 

1 Answer

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The trajectory of particle under gravitational force of the earth will be a conic section (for motion outside the earth) with the centre of the earth as a focus. Only (c) meets this requirement because in which centre of earth is the focus of trajectory.

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