Welcome to Westonci.ca, the place where your questions are answered by a community of knowledgeable contributors. Connect with a community of professionals ready to provide precise solutions to your questions quickly and accurately. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

How much kinetic energy does a 7.2-kg dog need to make a vertical jump of 1.2 m? the acceleration due to gravity is 9.8m / s^2

Sagot :

Assuming that no energy is wasted,
Use the equation Gpe=mgh
Mass*gravity*height
1.2*7.2*9.8=
84.672
(The answer might be wrong I did it in my head)
[tex]E_k=mgh\\\\m=7.2\ kg\\\\g=9.8\ m/s^2\\\\h=1.2\ m\\\\E_k=7.2\cdot9.8\cdot1.2=84.672\ \left[\frac{kgm^2}{s^2}\right]=84.672\ [J][/tex]