What distance in kilometers does a police car travel with a velocity of 1.5 km/m for 5.0 minutes

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

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?