Question

the equation of hour hand ai 4O'clock is

Answer 1

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Answer 2

The equation of hour hand at $4$ o'clock is $y=-\sqrt{3}x$

Step-by-step explanation:

Given,

The equation of hour hand at $4$ o'clock.

As the clock make total angle of $360$° in $12hr.$

So, In $1hr.$ it make angle $\frac{360}{12} =30$°

At $4$ o'clock, the hour hand makes $120$° with clockwise direction.

So,

Slope$=tan120=-\sqrt{3}$

The clock center is $(0,0)$

So,

No intercept that's means $c=0$

The equation of hour hand is $y=mx$

∴ $y=-\sqrt{3}x$