Register
You throw a stone vertically upward with an initial speed of 6.4 m/s from a third-story office window. A) Find the speed of the stone just before it hits the ground. Hint: the time is 2.3 s
68.1k views
0 votes
You throw a stone vertically upward with an initial speed of 6.4 m/s from a third-story office window.

A) Find the speed of the stone just before it hits the ground.
Hint: the time is 2.3 s

User Kerwyn
by
8.5k points

1 Answer

5 votes
-12 = 6.2*t - 4.9*t² → t = 2.32 sec (quadratic formula)

V = Vi -g*t = 6.2 - 9.8*2.32 = -16.5 m/s
User Domas Mar
by
9.1k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers

Other Questions

At sea level, water boils at 100 degrees celcius and methane  boiled at -161 degrees celcius. Which of these substances has a stronger force of attraction between its particles? Explain your answer
A snowball is launched horizontally from the top of a building at v = 16.9 m/s. If it lands d = 44 meters from the bottom, how high (in m) was the building?
What type of rock is the Haystack rock (igneous, Metamorphic, or Sedimentary)
How many light sources do you know Pls list them
What is the minimum resistance which can be made using five resistors each of 1/5
Link Copied!