anonymous
  • anonymous
A golf ball is hit from the ground with an initial speed of 192 feet per second. How long will it take the golf ball to hit the ground? A. 39 secs B. 19 secs C. 12 secs D. 6 secs
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
....
anonymous
  • anonymous
At what angle?
anonymous
  • anonymous
Seems like info is missing...height, angle, equation?

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anonymous
  • anonymous
There isn't enough information given to answer this question. You need to know the vertical component of the velocity, and assume that by "hitting the ground" they mean to return to the initial height. With an angle for the velocity, you can decompose it into it's horizontal and vertical components. You can then apply the basic kinematic equations to find when the ball returns to it's initial height (presumably of zero).
anonymous
  • anonymous
that is all the question asks.
anonymous
  • anonymous
Well, we can assume that the 192 feet per second is purely vertical, I suppose...
anonymous
  • anonymous
The acceleration of gravity is -32.174 ft/s^2. Do you know the kinematic equation to use to solve this?
anonymous
  • anonymous
|dw:1332825209685:dw|
anonymous
  • anonymous
Not enough info unless you solve it going straight up like Vand said
anonymous
  • anonymous
Well, if you use the kinematic equations and assume 192 is the vertical velocity, you do get one of the answers given. So, I'd go ahead and do that.

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