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The horizontal and vertical displacemen...

The horizontal and vertical displacements of a projectile at time t are x=36t and `y=48t-4.9t^(2)` respectively where x ,y are in meters and t in seconds.Initial velocity of the projectile in m/s is

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Knowledge Check

  • The horizontal and vertical displacements x and y of a projectile at a given time t are given by x= 6 "t" and y= 8t -5t^2 meter.The range of the projectile in metre is:

    A
    9.6
    B
    10.6
    C
    19.2
    D
    38.4

  • The x and y coordinates of the particle at any time are x=5t-2t^(2) and y=10t respectively, where x and y are in meters and t in seconds. The acceleration of the particle at t=2s is:

    A
    `5m//s^(2)`
    B
    `-4m//s^(2)`
    C
    `-8m//s^(2)`
    D
    `0`

  • The 'x' and 'y' coordinates of the particle at any time are 'x'=5t-2t^(2) and 'y'=10t , respectively. Where 'x' and 'y' are in metres and 't' in seconds The acceleration of the particle at t=2 s is :

    A
    `5"m/s"^(2)`
    B
    `-4"m/s"^(2)`
    C
    `-8"m/s"^(2)`
    D
    `0`

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