MCQ
In the above question, the force acting on the object is
  • A
    $30\ N$
  • $-30 \mathrm{~N}$
  • C
    $3 \ N$
  • D
    $-3\  N$

Answer

Correct option: B.
$-30 \mathrm{~N}$
(b) $F=m a=10 \times(-3)=-30 \mathrm{~N}$

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