If an object goes from moving at 10 m/s eastward to moving at 30 m/s southward, how does its kinetic energy change?(adsbygoogle = window.adsbygoogle || []).push({});

If the object is to to change its velocity from east to south it would have stop all of its eastwards motion and then move in the southwards direction?

i have no idea if this is correct but i did the following

.5m(10)^2 + .5m(30)^2

and get 500m (mass is not given in the problem)

Any help would be greatly appreciated!

**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!

# Homework Help: Change in kinetic energy

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