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The ceiling of a long hall is 25 m high....

The ceiling of a long hall is 25 m high.What is the maximum horizontal distance that a ball thrown with a speed of `40 ms^(-1)` can cover without hitting the ceiling of the hall ? At what angle and from must it be thrown ?

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Knowledge Check

  • The ceiling of a tunnel is 5 m high. What is the maximum horizontal distance that a ball thrown with a speed of 20 ms^(-1) can go without hitting the ceiling of the tunnel (g= 10ms^(-2))

    A
    `10sqrt3m`
    B
    `20 sqrt3m`
    C
    `30 sqrt3`
    D
    `40 sqrt3m`

  • The ceiling of a hall is 40m high. For maximum horizontal distance, the angle at which the ball may be thrown with a speed of 56ms^(-1) without the ceiling of the hall is

    A
    `25^(@)`
    B
    `30^(@)`
    C
    `45^(@)`
    D
    `60^(@)`

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