he diagram below is an official schematic of a velodrome, where track cycling takes place. The riders can go around the track at up to 90 km/h. Assume that a biker is taking the steep turn (with maximum angle as shown) at a speed of 82 km/h and that the turn has a radius of 25 m. a. Determine the coefficient of friction required to keep on the track.  b. Explain why the track is banked (i.e. explain what would happen if the track were horizontal).

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The diagram below is an official schematic of a velodrome, where track cycling takes place. The riders can go
around the track at up to 90 km/h. Assume that a biker is taking the steep turn (with maximum angle as shown) at a
speed of 82 km/h and that the turn has a radius of 25 m.

a. Determine the coefficient of friction required to keep on the track. 
b. Explain why the track is banked (i.e. explain what would happen if the track were horizontal).

 

RIO OLYMPIC GAMES
Track Cycling
Aug 11-16
BARRA
Ģ
Olympic Velodrome
1st appearance
at the Games
1896
EQUIPMENT
▸Aerodynamic
helmet
► Jumpsuit
▸ Standard bike
for sprints, Keirin
and Omnium
► Team pursuit bike
Source: IOC
Gold medal
events
▸ Bike with one gear and no brakes.
wheels are 66-68 cm in diameter
10
of synthetic fibre
Track
► 250 m in circumference
Pursuit line.
Finish line-
▸ Keirin
Sprinters'
line
200m line-
Banked
at 42 degrees
warm-up lane
Riders sprint
after following
an electric pacer
as far as a point
700 m before the finish
Blue lane-
rest and
Inside of track
(official distance
racers must ride)
▸ Team pursuit
EVENTS
Team
sprint
Team
pursuit
Individual
sprint
Keirin
Omnium
2 teams
of 4 riders.
The 3rd rider's
time dictates
which team wins
▸ Sprint
Men
2 teams
of 3 cyclists
20
RTO 16
2 teams of 4 cyclists
Race distance: 4 km
Women
2 teams
of 2 cyclists
2 cyclists
Winner goes on to next round
Team
2,000-m sprint
Combination of 6
different races
**
Individual
Teams start
the race on
opposite sides
of the track
ⒸAFP
Transcribed Image Text:RIO OLYMPIC GAMES Track Cycling Aug 11-16 BARRA Ģ Olympic Velodrome 1st appearance at the Games 1896 EQUIPMENT ▸Aerodynamic helmet ► Jumpsuit ▸ Standard bike for sprints, Keirin and Omnium ► Team pursuit bike Source: IOC Gold medal events ▸ Bike with one gear and no brakes. wheels are 66-68 cm in diameter 10 of synthetic fibre Track ► 250 m in circumference Pursuit line. Finish line- ▸ Keirin Sprinters' line 200m line- Banked at 42 degrees warm-up lane Riders sprint after following an electric pacer as far as a point 700 m before the finish Blue lane- rest and Inside of track (official distance racers must ride) ▸ Team pursuit EVENTS Team sprint Team pursuit Individual sprint Keirin Omnium 2 teams of 4 riders. The 3rd rider's time dictates which team wins ▸ Sprint Men 2 teams of 3 cyclists 20 RTO 16 2 teams of 4 cyclists Race distance: 4 km Women 2 teams of 2 cyclists 2 cyclists Winner goes on to next round Team 2,000-m sprint Combination of 6 different races ** Individual Teams start the race on opposite sides of the track ⒸAFP
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