(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A student stands at the edge of a vertical cliff and throws a stone vertically upwards. The stone leaves the student's hand with a speed of v=8.0m/s, the acceleration of free fall is 10m/s^{2}and all distance measurements are taken from the point where the stone leaves the student's hand. Ignoring air resistance calculate the time taken by the stone to reach its maximum height.

The time between the stone's leaving Antionio's hand and hitting the sea is 3.0s. Determine the height of the cliff.

2. Relevant equations

unknown

3. The attempt at a solution

s= ut + 1/2at^{2}

s= (8)(3) + 1/2(10)(3)^{2}

s= 69

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Calculating height in free falling problems

**Physics Forums | Science Articles, Homework Help, Discussion**