physics

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A canal lock gate is 20m wide and 10m deep. calculate the thrust acting on it assume that the water in the canal is in level with the top of the gate. density of water is 1000kg/m^3

  • physics -

    Hydrostatic pressure p varies linearly with height h, i.e.
    p=ρgh
    For a height of H and width of W, total force, F
    = W∫ρgh dh
    =ρgH²W/2
    Ensure that all values are in SI units.

  • physics -

    .Suppose an astronaut drops a feather from 1.2 m above the surface of the moon. If the acceleration due to gravity on the moon is m/s^2 downward, how long does it take the feather to hit the Moon's surface?

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