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A ball strikes a smooth horizontal groun...

A ball strikes a smooth horizontal ground at an angle of `45^(@)` with the vertical. What cannot be the possible angle of its velocity with the vertical after the collision. (Assume e `le` 1).

A

45°

B

30°

C

53°

D

60°

Text Solution

Verified by Experts

The correct Answer is:
B
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Knowledge Check

  • A ball strikes a smooth horizontal ground at an angle of 45^(@) with the vertical. What cannot be the possible angle of its velocity with the vertical after the collisioin. (Assume ele1 ).

    A
    `45^(@)`
    B
    `30^(@)`
    C
    `53^(@)`
    D
    `60^(@)`

  • A ball is projected from the top of a tower at an angle 60^(@) with the vertical. What happens to the vertical component of its velocity?

    A
    Increases continuously
    B
    Decreases continuously
    C
    Remain unchanged
    D
    Frist decreases and then increases

  • A particle strikes a horizontal frictionless floor with a speed u, at an angle theta with the vertical, and rebounds with a speed upsilon , at an angle phi with the vertical. The coefficient of restitution between the particle and the floor is e. The angle phi is equal to :

    A
    `theta`
    B
    `tan^(-1)[e tan theta]`
    C
    `tan^(-!)[(1)/(e ) tan theta]`
    D
    `(1+e) theta`

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    A particle strikes a smooth horizontal surface at an angle of 45^(@) with a velocity of 100m//s and rebounds. If the coefficient of restitution between the floor and the particle is 0.57 then the angle which the velocity of the particle after it rebounds will make with the floor is

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