Question

Minds on Physics Internet Modules For Stu Tea Newton's Laws NLS F=ma Calculations Consider the free-body diagram shown below. Use the numerical value for the individual forces and the approximate value of g (10 m/s/s) to determine the acceleration of the object (in units of m/s/s). Assign a negative number to the acceleration if it is leftward or downward. Enter a numerical answer. ####! Fnorm = 40 N Ffrict = 15 N Fapp = 35 N Fgray = 40 N

Answer 1

given :-

Fgrav = 40 N and g = 10 m/s/s

so mass of the object = m = Fgrav / g = 40 / 10

m = 4 kg

now according to newton's second law

Fnet = m *a

Fapp - Ffrict = m * a

35 - 15 = 4 * a

a = 20 / 4

a = 5 m/s/s <<<< Answer

feel free to drop comment if you have any doubt.