You push a box across the floor with a force of 30 n. you push it 15 meters in 8 seconds. how much work did you do? how much power did you use?

In science and physics what is the standard unit of measure for speed?

The dot diagram represents the motion of the motorcycle as it moves from left to right

At a certain instant after jumping from the airplane a, a skydiver b is in the position shown and has reached a terminal (constant) speed vb = 52 m/s. the airplane has the same constant speed va = 52 m/s, and after a period of level flight is just beginning to follow the circular path shown of radius ρa = 2330 m. (a) determine the velocity and acceleration of the airplane relative to the skydiver. (b) determine the time rate of change of the speed vr of the airplane and the radius of curvature ρr of its path, both as observed by the nonrotating skydiver.