awful slow !!
0.45 mm/hr (1 m/ 1000 mm) (1 hr/60 min)(1 min /60 s)
mm cancels
hr cancels
min cancels
meters/seconds is left
0.000000125 = 1.25 * 10^-7 m/s
as you said
Suzie the slug is travelling at a speed of 0.45 millimeters per hour. Calculate her speed in
meters per second and feet per minute. You must show your work and you may only use
the following conversion factors: 1 hr = 60 min, 1 min = 60 sec, 1000 mm = 1 m, 100 cm
= 1 m, 1000 m = 1 km, 2.54 cm = 1 inch, 12 inches = 1 ft.
The answer I got is: 0.45mm/hr * 1in/2.54cm * 1hr/3600s = 1.25*10^-7m/sec
0.45mm/hr * 1in/2.54cm * 1ft/12in * 1hr/60min= 2.54*10^-4ft/min
I asked 4 different people for help, and I received four different answers and I want to be sure. Thanks
2 answers
1.25 * 10^-7 m/s (100 cm/1 m)(2.54 in/cm)(1 ft/12 in)(60 s/min)
= 0.000159 ft/min
= 0.000159 ft/min
2 answers