27403 Parallax Inc, 27403 Datasheet - Page 28

• Manufacturer Part Number: 27403
• Description: GUIDE APP ROBOTCS W/SUMOBOT V1.0
• Manufacturer: Parallax Inc

Specifications of 27403

• Accessory Type: Manual
• Product: Microcontroller Accessories
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: SumoBot®
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

Since weight is a force, and gravity is a form of acceleration, an equation you will find
useful in your calculations is:
Problem: An object has a mass of 0.75 kg, what's its weight in newtons?
Solution: Start with the equation w = mg, and figure out which system to use and which
pieces of information you already know. Also, look at Table 1-1 again. The units of your
result should be in kg×m/s
system. The acceleration due to gravity in the SI system is 9.8 m/s
two pieces of the puzzle, we can calculate the third.
Unit Conversions
There are 1000 grams in 1 kilogram. That's:
If you divide both sides of the equal sign by one of these values, you will have 1 =
conversion factor. For example:
1000
1
W
w
=
=
=
=
=
=
1000
mg
. 0
. 7
. 7
m
1
g
75
35
35
kg
×
=
The acceleration due to gravity is 9.8 m/s
Engineering system.
A newton is in fact a kg m/s
g
g
1
kg
kg
N
kg
×
m
9
s /
8 .
2
m
and
s /
2
2
. Since the mass is in kg units, we can start with the SI
1000
1
kg
2
. Likewise, a pound is a slug ft/s
g
=
1
2
in the SI system and 32 ft/s
2
.
2
. Now that we know
2
in the British