A crate is pushed 10m along a horizontal surface by a force of 80N. The frictional force opposing the motion is 60N. How much of the work done is converted into thermal energy(T) and how much is into kinetic energy(K) of the crate?

Question

anonymous · Answer

60*10=600 Joules Thermal Energy

20*10= 200 Kinetic Energy

anonymous · Answer

A block of mass 2kg is connected to a freely hanging block of mass 4kg by a light inextensible string which passes over pulley at the edge of a table. The 2kg mass is on the surface of the table retriceed to be smooth. Calculate the acceleration and of the system and the tension in the string

anonymous · Answer

"retricemed"

what's that?

anonymous · Answer

the question i posted scondly too

anonymous · Answer

I don't understand that particular word

anonymous · Answer

see i have the question with is about 120 question when am tired of solving it that is why i come on forum looking for those that help solve the remaining 30

anonymous · Answer

can you help out please