1.

A projectile is fired on a horizontal ground. Coefficient of resitution between the projectile and the ground is e. If a, b and c be the ratio of time flight [T_(1)//T_(2)] maximum height [H_(1)//H_(2)] and horizontal range [R_(1)//R_(2)] in first two collisions with the ground. Then

Answer»

`a = (1)/(E)`
`B = (1)/(e^(2))`
`C = (1)/(e)`
All of the these

Answer :D


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