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

A 2.8kg block slides over a smooth icy hill. The top of the hill is horizontal and 70m higher than its base. The 70m plateau is 80m from the base of the hill. What is the minimum speed the block must have so that it will not fall into the pit on the far side of the hill?

(Picture attached)

2. Relevant equations

PE = mgh

K = .5mv^2

3. The attempt at a solution

mgh = .5mv^2

(2.8)(9.8)(70) = .5(2.8)v^2

3841.6 = v^2

v = 37 m /s

This answer is not right, I am not very strong in physics and frankly dont even know if I am using the correct formulas. Anything helps, thanks :]

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

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!

# Energy Conservation/Potential Energy - block on a hill

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