Velocity and time information for a leftward-moving car are shown.
t=4.0 s
v=4.0 m/s
t=0.0 s
v=16.0 m/s

Acar travels along a highway with a velocity of 24 m/s, west. the car exits the highway; and 4.0 s later, its instantaneous velocity is 16 m/s, 45° north of west. what is the magnitude of the average acceleration of the car during the four-second interval?

Which expression allows you to determine the mechanical advantage of an inclined plane? a. height of plane / input force b. length of plane / input force c. length of plane / height of plane d. height of plane / length of plane

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