contestada

When a lift is accelerating downward that a=g then the net force acting on the object is: (a)F=0N (b)F=mg (c)F=w-mg (d) F=w_ma

Respuesta :

Answer:

the answers the correct one is A

 F = 0

Explanation:

To find the net force we must apply Newton's second law

           F -W = ma

           

where the upward direction is positive, they indicate that the acceleration is equal to = - g

           F = W - m g

the weight of a body of W = mg

   we substitute

           F = mg - mg

           F = 0

The check the answers the correct one is A

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