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Problems with finding initial velocity of an object

  • Thread starter lGLOVEl
  • Start date
  • #1
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Homework Statement


In the figure below, what is the minimum initial speed of the dart if it is to hit the monkey before the monkey hits the ground, which is 12.2 m below the initial position of the monkey, if x is 48 m and h = 11 m? (Ignore any effects due to air resistance.)
Use this figure: http://imgur.com/xDVaz
From my calculations I have that it takes 1.6s for the monkey to fall 12.2m.


Homework Equations


x=X0 + V0t + 1/2(a)(t^2)


The Attempt at a Solution


Im stuck :/
 
Last edited:

Answers and Replies

  • #3
vela
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Why wouldn't the dart reach the monkey in time?
 
  • #4
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The time for the dart travelled horizontally distance of x = time the dart travelled up distance of h = time travelled by the monkey downward to height of h
 
Last edited:

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