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A 4.5 kg block is pulled across a table by a horizontal force of 42 N. The frictional force
opposing the motion is 7.5 N. Calculate the acceleration of the object.

Respuesta :

quasarJose

Answer:

7.67m/s²

Explanation:

The net force on the block is;

  Net force = Force of pull  - Frictional force

     

mass of block = 4.5kg

force of pull  = 42N

Frictional force  = 7.5N

  Net force  = 42  - 7.5

    Force  = mass x acceleration

    ma  = 34.5

     4.5 x a = 34.5

             a = [tex]\frac{34.5}{4.5}[/tex]   = 7.67m/s²

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