contestada

Because of a frictional force of 2.6 N, a force of 2.8 N must be applied to a
textbook in order to slide it along the surface of a wooden table. The book
accelerates at a rate of 0.11 m/s?.
a. What is the unbalanced force on the book?
b. What is the mass of the book?

Respuesta :

Cricetus

(a) The unbalanced force will be "0.2 N".

(b) The mass of book "1.818 kg".

Unbalanced force and mass:

Given:

  • Applied force = 2.8 N
  • Frictional force = 2.6 N
  • Acceleration = 0.11 m/s²

(a) Total unbalanced force,

→ [tex]F_{net} = 2.8-2.6[/tex]

          [tex]= 0.2 \ N[/tex]

(b) By applying Newton's second law,

→ [tex]F = ma[/tex]

or,

→ [tex]m = \frac{F_{net}}{a}[/tex]

By substituting the values,

      [tex]= \frac{0.2}{0.11}[/tex]

      [tex]= 1.818 \ kg[/tex]

Thus the above approach is correct.  

Find out more information about frictional force here:

https://brainly.com/question/24386803

Otras preguntas