Two carts collide and have a perfectly inelastic collision. Cart1 has a mass of 500 grams and Cart2 has a mass of 600 grams. Cart1 has an initial westward velocity of 1.6 m/s and collides
with Cart2 which was initially at rest. What is was the final velocity of the two cart system (SI
units)?

As a car drives with its tires rolling freely without any slippage, the type of friction acting between the tires and the road is 100) a) static friction. b) kinetic friction. c) a combination of static and kinetic friction. d) neither static nor kinetic friction, but some other type of friction. e) it is impossible to tell what type of friction acts in this situation.

To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?

In the first law of thermodynamics, triangle e=q-w, what does q stand for