contestada

A 20.0 kg curling stone travels 30.0 m along the ice surface. If the frictional force is 10.0 N, the thermal energy produced is

Respuesta :

The thermal energy is where the work of friction comes from.  That is what stops it eventually.  In this case a counter force of 10N is applied over the distance of 30.0m.  The energy is given by Force*Distance.  Here this is 300J.  This friction work is the thermal energy.

Answer:

thermal energy is 300 J

Explanation:

Thermal energy produced while moving on the rough floor is same as the work done by friction force

because friction force is a non conservative force which will produce thermal energy in the form of energy loss

so here this thermal energy is given by

[tex]E = W_f[/tex]

[tex]E = F_f . d[/tex]

here we have

[tex]F_f = 10 N[/tex]

[tex]d = 30 m[/tex]

so the work done is given by

[tex]E = 10(30) = 300 J[/tex]

So the thermal energy is 300 J