Answer to Question #206842 in Mechanical Engineering for Rodel

Question #206842

From the top of a building 75m, a bullet is fired at an angle of 45° above the horizontal with an initial velocity of 270 m/s. Find the time until it hits the ground.


1
Expert's answer
2021-06-22T05:10:18-0400

The initial vertical velocity is downward and the acceleration due to gravity will increase this downward velocity





Changing to standard quadratic form yields



This equation can be solved with the quadratic Equation:

t = 0.39 sec



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Comments

Assignment Expert
23.06.21, 12:56

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Rodel
22.06.21, 21:11

Thank you!

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