A foot strikes the floor with a force of 520N at an angle of 20 degrees. what is the friction force exerted by the foot?

Friction force on the ground is 488.6 N

Explanation:

As we know that the force of reaction which is along the horizontal surface in tangential direction is known as Friction force while other perpendicular component of the force is Normal force

Here we know that force is inclined at 20 degree with the horizontal

so we have

here we know

F = 520 N

so we have

it doesn't. it was imagined up in the middle ages.

  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.