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4-1.Newton's Laws of Motion
medium
$4 \mathrm{~kg}$ દળ ધરાવતો એક પદાર્થ બે બળો $\overrightarrow{\mathrm{F}_1}=5 \hat{i}+8 \hat{j}+7 \hat{k}$ અને $\overrightarrow{\mathrm{F}_2}=3 \hat{i}-4 \hat{j}-3 \hat{k}$ અનુભવે છે. પદાર્થમાં પ્રવેગ____________હશે.
A
$-2 \hat{i}-\hat{j}-\hat{k}$
B
$4 \hat{i}+2 \hat{j}+2 \hat{k}$
C
$2 \hat{i}+\hat{j}+\hat{k}$
D
$2 \hat{\mathrm{i}}+3 \hat{\mathrm{j}}+3 \hat{\mathrm{k}}$
(JEE MAIN-2024)
Solution
$\text { Net force }=8 \hat{i}+4 \hat{j}+4 \hat{k}$
$\vec{a}=\frac{\vec{F}}{m}=2 \hat{i}+\hat{j}+\hat{k}$
Standard 11
Physics
