Thursday

October 23, 2014

October 23, 2014

Posted by **Debbie** on Friday, March 30, 2012 at 1:39pm.

calculate the kinetic energy in joules of an automobile weighing 2135lb and traveling at 55 mph (1 mile=1.6093km, 1lb=453.59g)

- Chem 2 -
**Steve**, Friday, March 30, 2012 at 2:46pmjust use the formula:

KE = 1/2 mv^2

m = 2135 lb*.45359 kg/lb = 968.4 kg

v = 55 mi/hr * 1609.3 m/mi * 1 hr/3600s = 24.59 m/s

KE = .5 * 968.4 * 24.59^{2}kg-m^2/s^2 = 292780J = 292.78kJ

**Answer this Question**

**Related Questions**

Astronomy - We can calculate the kinetic energy of any moving object with a very...

physics - I need help with this problem so please help me. 1. A certain ...

algebra - The Answer is (32/20)^2=2.56times the kinetic enrgy at 20 m/s 2....

Algebra - Please help me solve this problem the kinetic energy (k) energy of a ...

Chemistry - Calculate your Kinetic Energy in Joules if you weigh50 kg and you ...

physics - suppose an automobile has a kinetic energy of 2900J. when it moves ...

chemistry - When a photon of light hits the surface of a metal, a photoelectron ...

Physics - A physics textbook is launched up a rough incline with a kinetic ...

physics - 1. Calculate the frequency (Hz) and energy (eV) of green photons with ...

chem - Ionization energy is defined as the minimum energy required to remove an ...