2006-11-25 18:42:46 · 10 answers · asked by vincent d 1 in Science & Mathematics ➔ Chemistry
80 km/hr * 10^5cm/km * 1hr/3600sec = 2222 cm/sec
2006-11-25 18:46:21 · answer #1 · answered by feanor 7 · 1⤊ 0⤋
There are 100,000 cm in a km, and 3600 seconds in an hour. Therefore, 80 km = 80*100,000 cm or 8,000,000 cm. Now we have the equation:
80km/hr = 8,000,000cm/3600sec.
Dividing yields approximately 2222.2 cm/sec.
2006-11-25 18:47:04 · answer #2 · answered by Bob R. 6 · 0⤊ 0⤋
1 km is 100000 cm and 1 hr is 60 X 60 sec
hence 80 km/hr is 80 X 100000 divide by 3600
or 2222.2222 cm/s
2006-11-25 18:51:40 · answer #3 · answered by Mathematishan 5 · 0⤊ 0⤋
80km/hr x (10^5cm/1km) x (1hr/3600s)= 20000/9 = 2222.22 cm/s
ps: ^5 means to the power of 5
2006-11-25 18:50:03 · answer #4 · answered by Anonymous · 0⤊ 1⤋
there are 3600 sec.in the hour ,and from km to cm we multiply by 100000.
so the answer will be in this form :80X100000/3600
80000/360=2222.222
approximatly 2222cm/sec.
2006-11-25 23:08:48 · answer #5 · answered by maram 1 · 0⤊ 0⤋
Multiply by conversion factor, in the new units
80 x 100,000cm divided by 3600sec
Cancel out the old units, leave new desired units in the equation - thats the trick
2006-11-25 18:51:21 · answer #6 · answered by Sid Has 3 · 0⤊ 0⤋
80 km/h = 8000000cm / 360 sec = 22222.22 cm/sec
2006-11-25 18:45:45 · answer #7 · answered by James Chan 4 · 0⤊ 1⤋
multiply by 100000 for converting into cm
then divide by 360 for converting into sec.
2006-11-25 18:56:02 · answer #8 · answered by Vinod 2 · 0⤊ 0⤋
multiply it with 1000/36
u r in the wrong category
2006-11-25 18:58:52 · answer #9 · answered by Papilio paris 5 · 0⤊ 0⤋
i do not know that one i am not good in math?
2006-11-25 18:43:37 · answer #10 · answered by stewart little 2 · 0⤊ 1⤋