A student repeats your lab but uses a penny and a book (instead of a washer and wooden ramp). Their data is: length of incline (book): 29 cm initial velocity: 0 m/s Angle of incline (book): 38o Times to slide down, 0.34, 0.39, 0.37, 0.38, 0.33 seconds What is the coefficient of KINETIC friction for the penny and book interface? Give your answer to 2 significant figures (2 decimal places)

A student repeats your lab but uses a penny and a book (instead of a washer and wooden ramp). Their data is: length of incline (book): 29 cm initial velocity: 0 m/s Angle of incline (book): 38o Times to slide down, 0.34, 0.39, 0.37, 0.38, 0.33 seconds What is the coefficient of KINETIC friction for the penny and book interface? Give your answer to 2 significant figures (2 decimal places)

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter4: Forces In One Dimension

Section4.3: Newton's Third Law

Problem 32PP

See similar textbooks

Similar questions

Hi the last part is telling me it is wrong for the frictional force? im trying to solve but not sure the correct way ff=u*FN?
A 500N block is resting on an inclined plane and is subjected to a constant force of 600N acting parallel to the inclined plane. After the block has moved 3m from rest along the inclined plane, the force 600N is removed. The inclined plane has a slope of 3 vertical to 4 horizontal. Coefficient of friction is 0.20. Solve for the velocity of the block, in m/s, when the force 600N was removed. Round your answer to 2 decimal places.
Remember to include given information, basic equations, calculations, and solutions with correct units for full credit. You are NOT to use kinematics unless otherwise stated. Tony asks Bruce for a little help rebuilding his home after it is destroyed. There is a 1.40 x 103 kg crate of technology items that needs to be pushed up a hill making an angle of 35.0° with the horizontal. If the coefficient of kinetic friction between the crate and the grass is 0.400, a. How much work must Hulk do on the crate to move it up the 40.0 m hill with an acceleration of 1.50 m/s2? b. How much work is done by gravity on the crate? c. How much work is done by friction on the crate? d. How much work is done by the net force on the crate?
A cabinet of mass 3.7 kg is at rest on a ramp as shown. What is the magnitude of the friction force on the cabinet, in Newtons? The coefficients of friction between the cabinet and ramp are Ps = 0.850 and uk = 0.750. Use g = 10 m/s2. (Hint: what type of friction is it?) Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement. 30.0
Joe uses a force of 250N to push a box with a mass of 95 kg up a 8 degree incline. If coefficient of kinetic friction is 0.05, what is his acceleration up the ramp?Also, what is the magnitude of the normal force ?
A driver in a 1000 kg car traveling at 24 m/s slams on the breaks and skids to a stop. The coefficient of kinetic friction between the tires and the road is 0.80. a) What is the acceleration (deceleration) of the car? b) How long will the skid marks be (how far will the car go before stopping)?
While sliding a couch across a floor, Andrea and Jennifer exert forces FA and FJ on the couch. Andrea’s force is due north with a magnitude of 130.0 N and Jennifer’s force is 32 east of north with a magnitude of 180.0 N. (a) Find the net force in component form. (b) Find the magnitude and direction of the net force. (c) If Andrea and Jennifer’s housemates, David and Stephanie, disagree with the move and want to prevent its relocation, with what combined forceFDS should they push so that the couch does not move?
Consider the baby being weighed in the following figure. (a) What is the mass of the infant and basket if a scale reading of 55 N is observed? (b) What is tension T1in the cord attaching the baby to the scale? (c) What is tension T2, In the cord attaching the scale to the ceiling, If the scale has a mass of 0.500 kg? (d) Sketch the situation, indicating the system of interest used to solve each part. The masses of the cords are negligible.
In building a house, carpenters use nails from a large box. The box is suspended from a spring twice dining the day to measure the usage of nails. At the beginning of the day, the spring stretches 50 cm. At the end of the day, the spring stretches 30 cm. What fraction or percentages of the nails have been used?
The CERN particle accelerator is circular with a circumference of 7.0 km. (a) What is the acceleration of the protons (m=1.671027kg)that move around the accelerator at 5of the speed of light? (The speed of light is v=3.00108m/s .) (b) What is the force on the protons?
Three blocks are connected by ropes, as depicted in Figure 1. The coefficientof kinetic friction between m1 and m2 is 0.300, and the horizontal surface and pulleys are frictionless. What is the acceleration of the blocks?
Ps: Answer accordingly with clear explanations. Make sure to answer from the point of view of an engineering student. (we don't do this so I really need ur help) In conducting the Vectors Experiment, what are the issues that may lead to erroneous readings and how do you say that it is really an issue?