Question

(a) Calculate the height of a cliff if it takes 2.35 s for a rock to hit the ground when it is thrown straight up from the cliff with an initial velocity of 8.00 m/s. (b) How long would it take to reach the ground if it is thrown straight down with the same speed?

a) $8.26 \textrm{ m}$

b) $0.717 \textrm{ s}$

Solution Video

# OpenStax College Physics Solution, Chapter 2, Problem 47 (Problems & Exercises) (6:50)

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