Estimate the magnitude of the braking force

Assignment Help Physics
Reference no: EM13719207

Compute all parts of given question:

Question: A 60kg bicyclist rides his 7.8kg bicycle with a speed of 15m/s.

Part I: How much work must be done by the brakes to bring the bike and rider to a stop?

Part II: How far does the bicycle travel if it takes 3.5s to come to rest?

Part III: What is the magnitude of the braking force?

I need help to find how much work must be done by the brakes to bring the bike and rider to a stop.

Reference no: EM13719207

Questions Cloud

How far will the cookie slide from the equilibrium position : A large fake cookie sliding on a horizontal surface is attached to one end of a horizontal spring with spring constant k = 380 N/m; the other end of the spring is fixed in place. How far will the cookie slide from the equilibrium position
How much work is done by the normal force of the floor : How much work is done by the normal force of the floor of the elevator on a 48 kg object that is lifted 30 m when the elevator is accelerating upward with magnitude 3 m/s²
Determine what is the bat angular acceleration : A baseball bat has a mass of 0.82 kg and is 0.86 m long. What is the bat's angular acceleration when it has reached 20° from the vertical
What is the work done on the puck by the stick : A puck of mass 0.165 kg, initially resting on ice, is hit by a stick to gain a speed of 32.0 m/s and then slides 25.0 m to lose 5.00% of its kinetic energy. What is the work done on the puck by the stick
Estimate the magnitude of the braking force : A 60kg bicyclist rides his 7.8kg bicycle with a speed of 15m/s. What is the magnitude of the braking force
Calculate the official measure of the deficit : Calculate the official measure of the deficit in year t and calculate the correct (i.e. inflation adjusted) measure of deficit in year t.
What is the second longest wavelength that can be absorbed : The longest wavelength of light that can be absorbed by a particular harmonic oscillator is lumda = 1000 nm.  What is the second longest wavelength that can be absorbed
Find what is the power output of the catapult : A catapult launcher on an aircraft carrier accelerates a jet from rest to 77m/s. The work done by the catapult during the launch is 7.7×107J. what is the power output of the catapult
How much power is needed to push the box : You push a 69kg box across a floor where the coefficient of kinetic friction is µk = 0.55. The force you exert is horizontal. How much power is needed to push the box

Reviews

Write a Review

Physics Questions & Answers

  By what factor does this angular frequency change

A circuit contains a 4.50-nF capacitor and a 4.00-mH inductor. By what factor does this angular frequency change if a 1.00-kilo ohms resistor is connected in series with the capacitor and the inductor

  What is the rbe for the unknown radiation

Neutrons (RBE = 2.0) and some unknown radiation type have the same biologically equivalent dose. What is the RBE for the unknown radiation

  Find the new angular speed of the student

A student sits on a rotating stool holding two 3.0 kg objects. When his arms are extended horizontally, Find the new angular speed of the student

  What is the pressure at the airborne location

A helium-filled weather balloon has a 0.90 m radius at liftoff where air pressure is 1.0 atm, What is the pressure at the airborne location

  Find the center-of-mass velocity of the two skaters

Two skaters are traveling toward each other. The left skater has a mass of 75 kg while the right skater has a mass of 90 kg. Find the center-of-mass velocity of the two skaters in the pavement

  Find the speed of the bullet when it exits the block

A bullet with a mass of 4.0 g and a speed of 650 m/s is fired at a block of wood with a mass of 9.7×10?2 kg. What is the speed of the bullet when it exits the block

  A 450-loop circular armature coil with a diameter of 80 cm

question a 450-loop circular armature coil with a diameter of 8.0 cm rotates at in a uniform magnetic field of strength

  Determine the angular speed of the stone

One type of slingshot can be made from a length of rope and aleather pocket for holding the stone. Determine the angular speed of the stone

  Alpha particles are helium nuclei

If alpha particles are caused to fall through a potential difference of 1500 volts, determine their final speed if they were initially at rest. An alpha particle has mass 6.68*10^-27kg and charge of +2e. Alpha particles are Helium nuclei.

  Moment that the monkey is halfway between the ends of bar

You shoot an arrow into the air. Two seconds later arrow has gone straight upward to a height of 30 meters above its launch point. a) What was the arrow's initial speed? b) How long did it take for the arrow to first reach a height of 15 meters ab..

  Determine the initial speed of the bullet

A worker on scaffolding 65 ft above the ground needs to lift a 340 lb bucket of cement from ground to a point 30 feet above the ground by pulling on a rope weighing 5 lb/ft. How much work is required.

  What speed does water spray from the hose

A dish of hot food has an emissivity of 0.40 and emits 20 W of thermal radiation. If you wrap it in aluminium foil, which has an emissivity of 0.008, how much power would it radiate.

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