Physics - NLM Question with Solution | TestHub

(I) Equilibrium $\Rightarrow$$\sum \vec{F}=0\Rightarrow \vec{a}=0$

$\vec{v}=0or\vec{v}=constant$ → Q, R

(II) Body moving $\vec{a}=0\Rightarrow \sum \vec{F}=0$ → P, R

(III) Always at rest$\vec{v}=0\Rightarrow \vec{a}=0\Rightarrow \sum \vec{F}=0$ → P, R

(IV) Accelerated body$\sum \vec{F}=m\vec{a}$

Direction: $\vec{a}\parallel \sum \vec{F}$ → P, S

Answer: A