1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mart [117]
3 years ago
14

What is the smallest radius of an unbanked (flat) track around which a bicyclist can travel if her speed is 29.5 km/h and the μs

between tires and track is 0.435?
Physics
1 answer:
Yakvenalex [24]3 years ago
8 0

Answer:

Radius=15.773 m

Explanation:

Given data

v=29.5 km/h=8.2 m/s

μs=0.435

To find

Radius R

Solution

The acceleration is a centripetal acceleration  which is experienced by the bicycle given by

a=v^{2}/R

This acceleration is only due to static force which given as

f=ma\\f=m(v^{2}/R )

The maximum value of the static force is given as

Fs_{max}=u_{s}F_{N}

where

FN is normal force equal to mass*gravity

Therefore when the car is on the verge of sliding

f=fs_{max}\\ m(v^{2}/R )=u_{s}mg

Therefore the minimum radius should be found by the bicycle move without  sliding

So

v^{2}/R=u_{s}g\\  R=v^{2}/u_{s}g\\R=(8.2)^{2}/(0.435*9.8)\\R=15.773m

You might be interested in
What will happen if you drop a golf ball, a baseball, and a bowling ball at the same instant from the top of a tall building
V125BC [204]
Depending on the height of the building they can break due to impact on the floor.
8 0
2 years ago
Suppose that a white dwarf is gaining mass through accretion in a binary system. what happens if the mass someday reaches the 1.
Soloha48 [4]
It would blow up turning into a supernova.
7 0
3 years ago
Read 2 more answers
The orbit of a certain a satellite has a semimajor axis of 4.0 x 107 m and an eccentricity of 0.15. Its perigee (minimum distanc
Mashutka [201]

Answer:

100KM and 1kkm

Explanation:

5 0
3 years ago
How do I set up this equation?
Natalka [10]
They start at 1 meter and after 10 seconds they've moved to 6 meters.
 6 - 1 = 5 meters
4 0
3 years ago
What does it mean to control variables
olga55 [171]
Controlled variables are influences that could affect the outcome of an experiment, and so are purposely controlled so that they do not impact the experimental results.
3 0
3 years ago
Other questions:
  • A rubber balloon has become negatively charged from being rubbed with a wool cloth, and the charge is measured as 1.00 × 10−14 C
    13·1 answer
  • One of the longer sides of a kite is 39 feet. one of the shorter sides is 25 feet. half the length of the shorter diagonal is 15
    13·1 answer
  • A toy rocket moving vertically upward passes by a 2.0-m-high window whose sill is 8.0 m above the ground. The rocket takes 0.15
    9·1 answer
  • How does an atom of potassium-41 become a potassium ion with a +1 charge? 19 K 39.10
    10·2 answers
  • What best describes the angle between a changing electric field and the electromagnetic wave produced by it?
    12·1 answer
  • What is the asthenosphere made out of?
    5·1 answer
  • What is cosmic ray spallation
    7·2 answers
  • The maximum mass of a white dwarf is ______ times the mass of the sun.
    11·1 answer
  • Three observers watch a train pull away from a station toward the right of the platform. Observer A is in one of the train’s car
    6·1 answer
  • 4. An airplane normally flies at 240 km/hr. If it experiences a 80 km/hr tailwind
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!