1) A toy rocket-launcher contains a spring with a spring constant of 35 N/m. How much must the spring be compressed to store 1.5 J of energy?
2) A box is connected to a spring is extended to 200mm, and it stored 3578J of energy. Find the force.

For number one I got
0.4m
For number two I got
89450N/M
Would this be correct?

answer: its c lololo

  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.

im srry but ur wrong the answer is d a smooth rock, some red dirt, and an empty bird's nest.