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A projectile is fired at an angle of 30° to the horizontal such that the vertical component of its initial velocity is 80 m/s. Its time of flight is t. Its velocity at the moment, has a magnitude of nearly...

          A projectile is fired at an angle of 30° to the horizontal such that the vertical component of its initial velocity is 80 m/s. Its time of flight is t. Its velocity at the moment, has a magnitude of nearly...
        

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University Physics with Modern Physics
University Physics with Modern Physics
Hugh D. Young 14th Edition
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A projectile is fired at an angle of 30° to the horizontal such that the vertical component of its initial velocity is 80 m/s. Its time of flight is t. Its velocity at the moment, has a magnitude of nearly...
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Transcript

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00:01 So for this question, we have a projectile that is launched in this direction, and it has an angle of 30 degrees with the horizontal.
00:13 They say that when it is fired, it has an initial velocity up that is 80 meters per second.
00:26 So what they want us to do is figure out what is the velocity overall, or what is our initial velocity in this direction? because we know that in this direction, this is the initial velocity in the y direction.
00:43 So how do we find that? well, we know that this is the opposite side of the triangle, and we want the hypotenuse...
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