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There are 1000 m in a km and 3600 sec in an hr. Thus, multiplying 40.32 km/hr by 1000 m/km gives 40320 m/hr. Dividing this by 3600 sec/hr gives 11.2 m/sec.

Of course, the two operations can be done in the other order.

Some calculators have unit conversions built-in. Without knowing the make and model of your calculator, I can't tell you whether yours does so or not, let alone tell you the keystroke sequence to do it.

Posted on Jun 09, 2011

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Kilometers per Hour
**km/h:**
40.32

Meters per Second
**m/s:**
11.20

Feet per Second
**ft/s:**
34.14

Miles per Hour
**MPH:**
25.05

Nautical Miles per Hour
**Knots:**
21.77

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Posted on Jun 09, 2011

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Posted on Jan 02, 2017

360 km/hr is NOT 40 miles/hr.

1 mile is about 1.6 km

To go from km to miles, multiply by 0.62

To go from miles to km, multiply by 1.6

Kilometers per hour to Miles per hour

1 mile is about 1.6 km

To go from km to miles, multiply by 0.62

To go from miles to km, multiply by 1.6

Kilometers per hour to Miles per hour

Feb 23, 2017 | Cars & Trucks

Many of watch brands has outer bezel ring calibrated as TACHYMETER/ TACHOMETER. In simple words this is SPEEDOMETER on your wrist, like in your car. The only difference is: it does not work automatic, but you have to have some maths basics in your brain to make work it.

The main thing is: As second is taken as measuring point (any wristwatch is moving sec by sec, min by min, hr by hr and so on), there is no actual possibility to measure speeds less than 60 km/h. This is because our time is divided to hours, minutes and seconds (1 hr=60 mins= 3600 secs), but ordinary watch on your wrist can't count smaller than a second, so, the starting point still is 60 for the majority.

The best watch tachymeters are producing/manufacturing BREITLING, as they have very long relationship with aviators all over the world. Braitling watches can count up to 1/10 of second.

OK, here is the link to learn basics of how to use tachymeter:

http://www.mydigitallife.info/2006/12/10/how-to-use-tachymeter-function-on-watch-bezel-usage-instruction-and-definition/

The main thing is: As second is taken as measuring point (any wristwatch is moving sec by sec, min by min, hr by hr and so on), there is no actual possibility to measure speeds less than 60 km/h. This is because our time is divided to hours, minutes and seconds (1 hr=60 mins= 3600 secs), but ordinary watch on your wrist can't count smaller than a second, so, the starting point still is 60 for the majority.

The best watch tachymeters are producing/manufacturing BREITLING, as they have very long relationship with aviators all over the world. Braitling watches can count up to 1/10 of second.

OK, here is the link to learn basics of how to use tachymeter:

http://www.mydigitallife.info/2006/12/10/how-to-use-tachymeter-function-on-watch-bezel-usage-instruction-and-definition/

on Aug 06, 2010 | Watches

Take it in two steps.

Multiply 88 ft / sec by 1 mi / 5280 ft to get 88 ft*mi / 5280 ft*sec. 88 / 5280 is 1 / 60 and ft*mi / ft*sec is mi / sec so it simplifies to 1 mi / 60 sec.

Multiply 1 mi / 60 sec by 3600 sec / 1 hr to get 3600 mi*sec / 60 sec*hr. 3600 / 60 is 60 and mi*sec / sec*hr is mi / hr so it simplifies to 60 mi / hr or 60 mph.

Multiply 88 ft / sec by 1 mi / 5280 ft to get 88 ft*mi / 5280 ft*sec. 88 / 5280 is 1 / 60 and ft*mi / ft*sec is mi / sec so it simplifies to 1 mi / 60 sec.

Multiply 1 mi / 60 sec by 3600 sec / 1 hr to get 3600 mi*sec / 60 sec*hr. 3600 / 60 is 60 and mi*sec / sec*hr is mi / hr so it simplifies to 60 mi / hr or 60 mph.

Mar 04, 2013 | Cars & Trucks

Hi there:

To Convert km to miles just keep in mind that**1 kilometer = 0.621371192 miles**

**20 Km/Hr = 12.427 Miles/Hr**

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

To Convert km to miles just keep in mind that

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Aug 21, 2012 | Scion xB Cars & Trucks

2924 Kms / 43 Hrs = 68 Km/hr

Jul 03, 2011 | 2011 Audi A5

change trans fluid and filter and a fuel filter might not hert

Dec 24, 2010 | Chevrolet Equinox Cars & Trucks

It's a simple problem in dimensional analysis. There's 5280 feet in a mile and 3600 seconds in an hour.

(88 ft / sec) * (1 mi / 5280 ft) * (3600 sec / hr) = (60 mi / hr)

Or you can use the calculator's unit conversion facilities.

8 8 2nd [CONV] then select "SPEED" then "ft/s" then "mi/hr".

(88 ft / sec) * (1 mi / 5280 ft) * (3600 sec / hr) = (60 mi / hr)

Or you can use the calculator's unit conversion facilities.

8 8 2nd [CONV] then select "SPEED" then "ft/s" then "mi/hr".

Oct 07, 2010 | Texas Instruments TI-85 Calculator

Let X be the time taken when train is moving in its normal speed.

Y be the normal speed of the train.

Speed = distance/time

that is X = 400 / Y

or Y = 400 / X --------- (1)

When speed is decreased by 5 km/hr time increases by 4 hour

that is X + 4 = 400 / Y -5

= X + 4 = 400 X / 400 - 5X ( substitute Y = 400 /X we get this equation)

on solving we get 5X^2 + 20x - 1600 = 0

we get two solutions X = 16 and -20

-20 is neglected (time cannot be negative)

substitute X in equation (1)

Y = 400 / 16 = 25 km/hr

So normal speed of train is 25 km/hr.

Y be the normal speed of the train.

Speed = distance/time

that is X = 400 / Y

or Y = 400 / X --------- (1)

When speed is decreased by 5 km/hr time increases by 4 hour

that is X + 4 = 400 / Y -5

= X + 4 = 400 X / 400 - 5X ( substitute Y = 400 /X we get this equation)

on solving we get 5X^2 + 20x - 1600 = 0

we get two solutions X = 16 and -20

-20 is neglected (time cannot be negative)

substitute X in equation (1)

Y = 400 / 16 = 25 km/hr

So normal speed of train is 25 km/hr.

Jun 02, 2010 | Vivendi Excel@ Mathematics Study Skills...

hi about every 60,000 miles is usual..hope this helps

May 10, 2010 | 2004 Chevrolet Aveo

Oct 23, 2019 | HP Office Equipment & Supplies

Oct 23, 2019 | HP Office Equipment & Supplies

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