Determine what work was done by friction

Assignment Help Physics
Reference no: EM13532680

A cart of mass 1.8kg rolls without friction on a track. At point A the cart is moving at 6.0m/s.

a) find the speed of the cart at points B and C?

b) The same track is used but now friction is acting on it. When the cart reaches point B it has a speed of 1.4m/s. What work was done by friction?

Reference no: EM13532680

Questions Cloud

Find the horizontal acceleration of the block : Two forces, and , act on the 7.00-kg block shown in the drawing. The magnitudes of the forces are F1=55.5 N and F2=33.5 N. Find the horizontal acceleration of the block
Different life-history strategies : Why do different salmon species have such different life-history strategies?
Compute the magnitude of the net force that acts on bobsled : The speed of a bobsled is increasing, because it has an acceleration of 2.99 m/s2. compute the magnitude of the net force that acts on the bobsled
Calculate the speed of the wagon after the rock is thrown : A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. Find the speed of the wagon after the rock is thrown (a) directly forward in one case and (b) directly backward in another
Determine what work was done by friction : A cart of mass 1.8kg rolls without friction on a track. At point A the cart is moving at 6.0m/s.  What work was done by friction
Optimum wavelengths of light for absorptionby each pigment : Based on your results, what are the optimum wavelengths of light for absorptionby each pigment (hint: look for spikes in the spectrum)? How do theresults compare to the predictions you made? Do yourfindings correspond with those noted in the liter..
Hazard ratio and confidence interval for treatment : Correlation and the corresponding p-value - Calculate Spearman's correlation by hand - Give the hazard ratio and corresponding confidence interval for treatment
What is the numerical value of this coefficient of friction : A light spring with a force constant of 12 is connected to a wall and to a 1.9 toy bulldozer, What is the numerical value of this coefficient of friction
Estimate how much longer would the jump be : An athlete executing a long jump leaves the ground at a 20° angle and travels 6.30 m. how much longer would the jump be

Reviews

Write a Review

Physics Questions & Answers

  Find the average speed of the car for the entire trip

A car travels a distance of 50km/hr. it then travels an additional distance of 60km in 1 hour. what is the average speed of the car for the entire trip

  What would be the pressure be if the nitrogen is replaced

A 10 kg runaway grocery cart runs into a spring with spring constant 240N/m and compresses it by 65cm. What was the speed of the cart just before it hit the spring.

  What is the electric force on q1 now in newtons

Indicate the negative x direction by including a negative sign in the answer, but omit a sign for the positive x direction.

  What is the entropy production

A solar concentrating heat exchanger system directs sunlight onto a long,straight pipe. The pipe recieves 153.616 btu/h per foot of length. What is the entropy production

  How far away from the first speaker- up the page

A physicist trying to demonstrate destructive interference stands 2.7m directly in front of a speaker. A second speaker produces identical (coherent) 600Hz tones.

  Four astronauts are in the spherical space station

If, as is typical, each of them breathes about 500 {rm{ cm}}^3 of air with each breath, approximately what volume of air (in cubic meters) do these astronauts breathe in a year.

  What is the position of this particle

A particle moves along the x-axis according to the equation x(t) = 2.0 + 3.0t2 - 1.0t3, where x is in meters and t is in seconds. What is the position of this particle when it achieves its maximum speed in the positive x-direction? What is its spe..

  What is the maximum extension of the spring

A mass of 5. 0 Kg is resting on a horizontal, frictionless surface. If the system is released from rest with the spring in its relaxed state, what is the maximum extension of the spring

  What is her total displacement from the office

Tammy leaves the office, drives 64km due north, then turns onto a second highway and continues in a direction of 33 degrees north of east for 79 km. What is her total displacement from the office

  Determine the electric potential difference

Charge of uniform density (80 nC/m^3) is distributed throughout a hollow cylinder region formed by two coaxial cylindrical surfaces of radii 1.0 mm and 3.0 mm. Determine the magnitude of the electric field at a point which is 2.0 mm from the symmetry..

  Compute the magnitude of the magnetic

At a certain location, the Earth's magnetic field has a magnitude of 6.2×10?5T, Find the magnitude of the magnetic flux through the top of a desk at this location that measures 130cm by 72cm

  Determine how many electrons need to leave each object

Two spherical objects with a mass of 5.89 kg each are placed at a distance of 2.16 m apart. How many electrons need to leave each object

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