A 1.45 kg block at rest on a tabletop is attached to a horizontal spring having constant 17.7 N/m. The spring is initially unstretched. A constant 25.5 N horizontal force is applied to the object causing the spring to stretch. The acceleration of gravity is 9.8 m/s. Find the speed of the block after it has moved 0.226 m from equilibrium if the surface between block and tabletop is frictionless. Answer in units of m/s.

Find the speed of the block after it has moved 0.226 m from equilibrium if the coefficient of kinetic friction between block and tabletop is 0.157. Answer in units of m/s.

okay i have so many questions. but the big one here is: um wt..f is this mess? ?

kepler used the data from tycho blahe (his mentor) to construct the laws of planetary motion.

  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.