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JEE PHYSICS MCQ: MOTION IN PLANE

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A particle is moving in the x−yx-y plane and its coordinates at any time tt are given by

x=5cos⁡ωty=5sin⁡ωt\begin{aligned} & x=5 \cos \omega t \\ & y=5 \sin \omega t \end{aligned}

Where (ω)=π4rad/s(\omega)=\frac{\pi}{4} \mathrm{rad} / \mathrm{s}. The direction of force it experiences at t=3 st=3 \mathrm{~s} is.
View answer and explanation
Correct option: B
i^−j^\hat{i}-\hat{j}
Option B (i^−j^\hat{i}-\hat{j}) is correct because it represents the direction of the net acceleration (and therefore the force) at t=3s, considering both x and y components.

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