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March 29, 2017

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Consider the motion of a projectile. It isfired at t = 0. Its initial speed is 36 m/s and its initial projection angle is 55◦ from the horizontal.
The acceleration of gravity is 9.8 m/s2 . y
x
What is the maximum height, h, of its tra jectory?
Answer in units of m.

  • Physics - ,

    Maximum height is achieved when the velocity's vertical component is zero.

    36*sin55 - gt = 0

    Solve for the time t. Then use

    y = 30*sin55* t - (g/2)t^2

    to get the maximum altitude h.

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