Answer:
A) Energy is dissipated into heat and sound energy due to Friction
B) The energy goes into heat and sound energy due to friction again, otherwise the cart would accelerate due to an unbalanced force. Therefore, we know there's friction, and the friction causes energy loss.
Answer:
60/90
Explanation:
I think because the train's highest velocity is 60 n the time is 90
Answer:
W= Kf
Explanation:
Using the energy-work thetheorem which states that the net work done on a particle is its change in kinetic energy
Thus
W = Kinitial- Kfinal
Buy Kinitial= 0
Thus
W= Kf