27404 Parallax Inc, 27404 Datasheet - Page 35

• Manufacturer Part Number: 27404
• Description: COMPETITION RING FOR SUMOBOT
• Manufacturer: Parallax Inc

Specifications of 27404

• Accessory Type: Hobby and Education
• 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

Problem: It took a 700 g mass (W
11 to make a 2100 g mass (W
Solution: If the system is exactly at T = f
we know that T and T
The next step is to draw separate free body diagrams for each object (see Figure 1-12).
The sum of the forces for the hanging block should add up to zero:
T =
∑
T
T
1
1
−
Fy
=
T
W
W
1
=
1
1
Coefficients of friction do not have units.
coefficient of friction, multiplied by the normal force. There are no units that need to cancel
each other out. For example, if you start with a normal force that's in newtons, and multiply
by a coefficient of friction, the result will be a frictional force in newtons.
0
=
0
1
are equal and opposite:
2
) start to slide. Find the coefficient of static friction, µ
1
) hanging from this pulley system shown in Figure 1-
S,Max
, nothing is moving yet. From Figure 1-11,
Chapter 1: Mechanical Adjustments · Page 31
A friction force is always equal to the
Figure 1-11
Pulley Problem
Tension in the string
applies force equal to
weight W1 to the
block on the surface.
S
.