A 20g bullet is fired and hits the trunk of a tree when it possessed a kinetic energy of 100 J . Determine the speed of the bullet before hitting the tree.

c, 1a hope this

d. air pressure decreases as altitude increases.

  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.

the components of a vector are the parts of the vectors that are to each other.

b perpendicular