Physics

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A cannon is mounted on a truck that moves forward at a speed of 5 m/s. The operator wants to launch a ball from a cannon so the ball goes as far as possible before hitting the level surface. The muzzle velocity of the cannon is 50 m/s. What angle from the horizontal should the operator point the cannon?

  • Physics -

    A ball is dropped from rest from 10 m above ground. The speed of the ball in the middle of trip to ground is close to
    Answer

    14 m/s

    10 m/s

    can't be determined because mass is not given

    100 m/s

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