Avan is traveling on a road at a speed of 55 km/h. a girl
sitting near the driver of the van throws a paper airplane to a
boy at the back of the van with a speed of 2 km/h.
the speed of the paper airplane, to the nearest whole
number relative to a stationary observer on the side of the
road, is
km/h.

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.

Occurs when an energy source transfers heat directly to another subject space; an example would be an object becoming warm by sitting in the sunshine

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?