Acopper sphere was moving at 40 m/s when it hit another object. this caused all of the ke to be converted into thermal energy for the copper sphere. if the specific heat capacity of copper is 387 j/(kg ⋅ c°), what was the increase in temperature?

0.23 c°
0.81 c°
1.3 c°
2.1 c°

Temperature increase = 2.1 [C]

Explanation:

We need to identify the initial data of the problem.

v = velocity of the copper sphere = 40 [m/s]

Cp = heat capacity = 387 [J/kg*C]

The most important data given is the fact that when the shock occurs kinetic energy is transformed into thermal energy, therefore it will have to be: