Angular speed and displacement of clock hands

PhysicsRotational MotionMediumJEE

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10. Let $\omega_1$ and $\omega_2$ be the angular speed of the second hand and minute hand of a smoothly running analog clock respectively. If $x_1$ and $x_2$ are the respective angular displacement in 1 minute then (1) $\frac{\omega_1}{x_1} = \frac{\omega_2}{x_2}$ (2) $\omega_1 x_1 = \omega_2 x_2$ (3) $\omega_1 x_1^2 = \omega_2 x_2^2$ (4) $\omega_1^2 x_1 = \omega_2^2 x_2$

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Step by Step Written Solution

1
Step 1

Hi Mohammad, let's solve this problem about an analog clock together.

Analyzing Clock Hand Dynamics

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Step 2

First, let's recall the definition of angular speed. Angular speed is defined as the change in angular displacement divided by the time interval taken.

$$ \omega = \frac{\theta}{t}$$
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Step 3

In this problem, the angular displacement is denoted as x, and the time interval is one minute. So we can write the formula as omega equals x over t.

$$ \omega = \frac{x}{t}$$
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Step 4

We can rearrange this formula to isolate the ratio of angular speed to angular displacement. Notice that omega divided by x equals one over t.

$$ \frac{\omega}{x} = \frac{1}{t}$$

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About This Question

Subject
Physics
Topic
Rotational Motion
Difficulty
Medium
Exam
JEE
Question Type
Multiple Choice

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