What is the velocity of an 500-kilogram elevator that has 4,000 joules of energy?

asked Jun 8, 2015 191k views

1 vote

7.7k points

0 Comments

Please log in or register to add a comment.

4 votes

$E=\frac{mv^2}2 \\ 2E=mv^2 \\ v^2=\frac{2E}m \\ v=\sqrt\frac{2E}m \\ v=\sqrt(8000)/(500) \\ v=√(16) \\ v=4$
4 meters per second.

Trembl answered Jun 15, 2015

8.3k points

0 Comments

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers