Friday
July 25, 2014

Homework Help: Physics ~Conservation of Energy~

Posted by Isis on Wednesday, January 30, 2013 at 5:57pm.

1.) At one point in its fall, an object (m=2.5 kg.) has a kinetic energy of 5 J(joule) and a potential energy of 10 J.

a) what is the total energy of the system?

b) what is the velocity at this point?

The object continues to another point where its potential energy is 3J(joule).

c) what is the KE(kinetic energy) at this point.

d) what is the velocity at this point.

e)how high off of the ground is the object.

>> FORMULAS <<
KE=1/2 v^2
PE= mgh

_please help me! >.<

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

science 8th grade - 1. The thermal energy of an object is _____. (1 point) its ...
Physics - please check: Which of the following energy forms is associated with ...
physics - A. A particle is traveling without friction up and down hills and ...
Conservation of energy - Can someone explain to me what happens when you take a ...
Physics - I need help with b... I found that k=.750880 for part a but I can't ...
Physics - A 5.36 kg object falls freely (ignore air resistance), after being ...
physics - A stone is thrown vertically upward. On its way up it passes point A ...
Physics - The electric potential energy of an object at point A is known to be ...
Physics Help!! - Suppose the kinetic energy of an object moving is 15 J and the ...
physics - an object is projected at an angle of 60 degrees to the horizontal ...

Search
Members