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physics

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An artillery shell is fired at an angle of 45.3◦ above the horizontal ground with an initial speed of 1710 m/s.
The acceleration of gravity is 9.8 m/s2 .
Find the total time of flight of the shell,
neglecting air resistance.
Answer in units of min.

  • physics - ,

    Look at the vertical...that is what time it is in the air.

    Hf=Hi+vivert*time- 1/2 g time^2
    solve for time
    vivert=1710*sin45.3 m/s

  • physics - ,

    An artillery shell is fired at an angle of 67.1◦ above the horizontal ground with an initial speed of 1580 m/s.
    The acceleration of gravity is 9.8 m/s2 .
    Find the total time of flight of the shell, neglecting air resistance.
    Answer in units of min.

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