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A ball is thrown from ground level at an angle of 65.0 degrees above the horizontal with an initial speed of 40.5 m/s. What is the velocity of the ball (magnitude and direction) when it is 34.5 m downrange of the thrower?

          A ball is thrown from ground level at an angle of 65.0 degrees above the horizontal with an initial speed of 40.5 m/s. What is the velocity of the ball (magnitude and direction) when it is 34.5 m downrange of the thrower?
        

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University Physics with Modern Physics
University Physics with Modern Physics
Hugh D. Young 14th Edition
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A ball is thrown from ground level at an angle of 65.0 degrees above the horizontal with an initial speed of 40.5 m/s. What is the velocity of the ball (magnitude and direction) when it is 34.5 m downrange of the thrower?
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Transcript

-
00:01 Hello, here a ball is thrown from the ground level at an angle of 65 degree above the horizontal and its initial speed is 40 and a half meters per second.
00:15 We have to determine velocity when it is 34 .5 meters down range the thrower.
00:31 So then this distance is horizontal and that is 34 and a half meters.
00:46 Let's make the sketch.
00:56 Let's write down the formula for l.
01:03 And now let's determine this time.
01:40 Now let's show this velocity v.
01:42 And now we have to determine y component of this velocity.
01:47 That is 16 .9 meters per second.
02:17 So it means that this component is positive...
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