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Projectile Homework Question!

  • Thread starter warguy701
  • Start date
  • #1
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Homework Statement


A backpacker throws a rock horizontally off of a cliff with an initial velocity of 11.7 m/s, and the rock lands 17.3 m away from the base of the cliff. What is the final vertical velocity of the rock? Round your answer to 2 decimal places.

Homework Equations


Δd = vot + 1/2at2

vf = vo + at

vf^2 = vo^2 + 2aΔd

The Attempt at a Solution


18.9 m/s
 

Answers and Replies

  • #2
Integral
Staff Emeritus
Science Advisor
Gold Member
7,198
55
You need to show how you got that 18.9 m/s answer. Hint you can find the time of flight easily.
 

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