2. the following data represent the initial (d) and final (d2) positions of a car, bicycle, pedestrian, and skateboarder car +2m & +14m bicycle +7m & +2m pedestrian -1m & +2m skateboarder +4m & -1m a. draw a number line and label an origin as point "o". mark the initial position of each object above the line. you will need to use a separate piece of paper, b. mark the final position of each object below the number line. c. calculate the displacement of each object. d. what is happening? if each displacement takes place in the same period of time, write a paragraph to describe the motion of each object.

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 740 n/m. it is initially at rest on an inclined plane that is at an angle of theta= 26 with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is uk = 0.17. in the initial position, where the spring is compressed by a distance of d = 0.16 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. the block's initial mechanical energy is 9.472 j. b. if the spring pushes the block up the incline, what distance l in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.

The velocity of a car traveling in a straight line increases from 0 meters/second to 30meters/second in 8 seconds. what is the average acceleration of the car?

Atorque acting on an object tends to produce a. equilibrium b. rotation c. linear motion d. velocity e. a center of gravity