Richard wrote a list of the advantages of using any one of the six simple machines. His list is below. Which statement about simple machines is not correct?

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

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

Need asap ‼️ 20 pts which gravitational force field diagram is drawn correctly? (answers in pictures below)