KillerSteamcar
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Which of these shows acceleration? How much is the net force? Question 6 options:
 C is accelerating, the net force is 40 N up.
  D is accelerating, the net force is 15 N up.
  D is accelerating, the net force is 15 N down.
  C is accelerating, the net force is 0 N.

Which of these shows acceleration How much is the net force Question 6 options C is accelerating the net force is 40 N up D is accelerating the net force is 15 class=

Respuesta :

AL2006

C is not accelerating.  The forces shown are balanced.

Looking at Block-D, the 25N downward force cancels 25 of the 40N upward force.  But that still leaves another 15N of upward force.  So there's a net force of 15N up, and D is accelerating up. (2nd choice)