Wednesday

August 20, 2014

August 20, 2014

Posted by **please check** on Wednesday, January 7, 2009 at 1:35pm.

find thenumebr of radians through which the hour hand of a clock turns in 5 hours.

i dont know what i did, this is what i wrote:

360degrees=1 hour

1800 degrees=5 hours

1800(pi/180)

somehow i got 10pi which is apparantly wrong.

- trigonometry -
**Reiny**, Wednesday, January 7, 2009 at 1:55pmyou are making it harder than it has to be

once around is 2pi radians

5 hours is 5/12 of "once around"

so radians in 5 hours = 5/12(2pi) = (5/6)pi radians

**Related Questions**

Math - 1) The hour hand on a clock has a length of 12 cm. Let the orgin be at ...

math - 1) The hour hand on a clock has a length of 12 cm. Let the orgin be at ...

Trigonometry - Find the angular speed in radians per sec. of the second hand on ...

physics - Consider the motion of the hour hand of a clock. What angle does the ...

Trigonometry - Find the angular speed in radians per sec. of the second hand on ...

trigonometry - Through how many degrees does the minute hand of a clock moves in...

trigonometry - a clock has a dial face of 12 inches radius the minute hand is 9 ...

Trig - Find the speed in both radians per second and degrees per second for the ...

PreCalc - Consider the tip of each hand of a clock. Find the linear velocity in ...

math - hundreds thousands millions That would be like turning BACK the hour hand...