Rotor begins spinning with aconstant angular acceleration

Assignment Help Physics
Reference no: EM13649121

A 50kg woman is in a rotor with a 2m radius, laying against theinner surface. The friction between the woman’s sweater andthe surface is μs = 0.5. (a) The rotor begins spinning with aconstant angular acceleration α, and when the rotor reachesenough angular speed, the floor drops but the woman stays stickingto the wall. (a) What is the minimum angular velocity that willallow the woman not to fall down when the floor drops? (b)What’s the maximum angular acceleration that will not makethe woman slide along the wall when the rotor is speeding up to theangular velocity calculated in (a)?

Reference no: EM13649121

Questions Cloud

How much time is required for your suitcase : Your suitcase has not slid all the way down the slope andis going around at a constant speed on a circle (r =12.0 m) as the carousel turns. How much time is required for your suitcase to go around once
How far did the aircraft slide : Aircraft A weighs 1000kg, traveling at 25m/s crashes into Aircraft B weighing 1500kg that is parked. After the collision, both aircraft skidded for 9.7s at a speed of 10m/s. How far did the aircraft slide?
Determine the tangential and centripetal components : Determine the tangential and centripetal components of the net force exerted on a car (by theground) when its speed is 40 m/s, and ithas accelerated to this speed from rest in 9.1 s on a curve of radius 400 m. The car's mass is 1000 kg.
Find the velocity and accelertion of the tip : A thin stick of mass 400 grams is 2 meters long, and is free to pivot about a point at one end. find the velocity and accelertion of the tip
Rotor begins spinning with aconstant angular acceleration : A 50kg woman is in a rotor with a 2m radius, laying against theinner surface. The friction between the woman’s sweater andthe surface is μs = 0.5.
Resistor are connected in parallel : A 90.0- and a 60.0- resistor are connected in parallel. Whenthis combination is connected across a battery, the currentdelivered by the battery is 0.152 A. When the 60.0- resistor is disconnected, the currentfrom the battery drops to 0.0642 A.
What is its required length if it is closed at one end : If an organ pipe is to resonate at 22.8 Hz, what is its requiredlength if it is open at both ends, What is its required length if it is closed at one end
How far from the van is the person actually standing : The owner of a van installs a rear-window lens that has a focallength of -0.298m. When the owner looks out through the lens at a person standingdirectly behind the van, the person appears to be just 0.241 m from the back of the van, and appears to..
Coal-fired power plant burns fuel with an energy density : A 250. MW coal-fired power plant burns fuel with an energy density of 35.0 MJ kg-1. Water enters the temp reduction towerat 293 K and leaves at 350. K at a rate of 4200. kgs-1.

Reviews

Write a Review

Physics Questions & Answers

  An electron enters a magnetic field of 064 t with a

an electron enters a magnetic field of 0.64 t with a velocity perpendicular to the direction of the field. what is the

  What size resistor should be placed in series

A galvanometer has a coil resistance of 29.0 ?. It is to be made into a voltmeter with a full-scale deflection equal to 100.0 V, what size resistor should be placed in series with the galvanometer

  Find the magnitude of the tension in the connecting cord

A mass m2 = 1.8 kg, on a 39.4° incline, is connected to a mass m1 = 5.2 kg, on a horizontal surface. find the magnitude of the tension in the connecting cord

  Magnitude of the braking forces

A 1500 kg blue car was travelling at 90 km/h. A 1200 kg red car was traveling behind the blue car at 108 km/h.when the two cars were 55 m apart, the blue car began braking.it took the driver of the red car 0.50 s to start braking her car. If the ..

  Dangers of tornados-hurricanes is rapid drop in air pressure

One of the dangers of tornados and hurricanes is the rapid drop in air pressure that is associated with such storms. Assume that the air pressure inside of a sealed house is when a hurricane hits.

  The current of 015 a flows through three resistors r1 20

the current of 0.15 a flows through three resistors r1 20 ohm r2 50 ohm r3 65 ohm connected in series. what is the

  Calculate the retarding force acting on the car

A car of mass 1330 kg is traveling at 28.0m/s. Calculate the retarding force acting on the car

  How many electrons flow through the bulb per second

A light bulb is rated at 60W, 120 V. how many electrons flow through the bulb per second and find the resistance of the bulb

  What is the probability of finding the electron

Consider the Hydrogen atom with its electron in the 1s ground state. What is the probability of finding the electron between 1.1 a0 and 2.7 a0 distances from the proton

  Sand drops from sationary hopper at the rate of 5kgs on to

sand drops from sationary hopper at the rate of 5kgs on to a conveyor belt moving with a constant speed of 2ms. what is

  Find her altitude as she crosses the bar

A 60 kg pole vaulter running at 11 m/s vaults over the bar. Her speed when she is above the bar is 0.7 m/s. determine her altitude as she crosses the bar

  Determine the minimum sample size needed using prior study

a reseacher wishes to estimate with 95 confidence the percentage of adults who support abolsihing the penny. his

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd