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A ball strikes a wall with a velocity {{u}} at an angle with

Question

A ball strikes a wall with a velocity $u$ at an angle $θ$ with the normal to the wall surface. and rebounds from it at an angle $β$ with the surface. Then

(θ + β) < 90^{\circ}

if the wall is smooth

if the wall is rough , coefficient of restitution

= tan β / cos θ

if the wall is rough, coefficient of restition

< tan β / cot θ

none of these

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A ball strikes a wall with a velocity

u

at an angle

θ

with the normal to the wall surface. and rebounds from it at an angle

β

with the surface. Then

15 mins ago

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Question Text	A ball strikes a wall with a velocity $u$ at an angle $θ$ with the normal to the wall surface. and rebounds from it at an angle $β$ with the surface. Then
Answer Type	Video solution: 1
Upvotes	154