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Laws of Motion

JEE Main level, single correct, medium

203 of 210

Question 203 of 210

A smooth circular groove has a smooth vertical wall as shown in figure. A block of mass $m$ moves against the wall with a speed $v$ . Which of the following curve represents the correct relation between the normal reaction on the block by the wall $\left(N\right)$ and speed of the block $\left(v\right)$ ?

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Answer: (A)

The required centripetal force will be provided by the normal reaction

\Rightarrow N=\dfrac{m{v}^{2}}{r}

This equation is similar to

y=k{x}^{2}

which is a parabola.

JEE Main question paper PDF

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JEE Main 2025 Apr 2 Shift 1 question paper

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JEE Main Physics practice question on Laws of Motion (Non-uniform Circular Motion), with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.