For a moving object, the force acting on the object varies directly with the object's acceleration. When a force of45N acts on a certain object, the acceleration of the object is5m/s∧2
. If the force is changed to81N
, what will be the acceleration of the object?

9

Explanation:

the force is directly proportional to acceleration

F=ma

F1/a1=F2/a2

45/5=81/a2

81×5/45=9M/S²

28. evolution

29. environment, survive, offspring  

explanation:

  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.