Atruck moves 60 kilometers east from point a to point
b. at point b, it turns back west and stops 15 kilometers away from point
a. what are the total distance and total displacement of the truck?

What are chlorofluorocarbons and what impact do they have on the atmosphere?

The x-coordinate of a particle in curvilinear motion is given by x = 3.1t3 - 4.9t where x is in feet and t is in seconds. the y-component of acceleration in feet per second squared is given by ay = 2.3t. if the particle has y-components y = 0 and vy = 5.0 ft/sec when t = 0, find the magnitudes of the velocity v and acceleration a when t = 1.8 sec. sketch the path for the first 1.8 seconds of motion, and show the velocity and acceleration vectors for t = 1.8 sec. answers: v = ft/sec a = ft/sec2

Which best represents the law of conservation of mass ?