Draw a free body diagram and vector diagram

Assignment Help Physics
Reference no: EM13100436

Consider a roong contractor is pulling on a rope to raise a load of roof shingles as shown. The contractor is standing on a roof with a pitch of 15 degrees. Each bundle of shingles weighs 30 lbs and the platform that carries the shingles weighs 20 lbs.

(a) Draw a Free Body Diagram and Vector Diagram for the Contractor and the platform carrying the shingles.

(b) How many packs of shingles can the contractor lift before he begins to slide down the roof assuming the following Contractor weights and values for the coecient of static friction exists between the contractor and the roof?

Scenario muS Weight of Contractor

(1) 0.2 [-] 160 [lbs]

(2) 0.2 [-] 280 [lbs]

(3) 0.55 [-] 160 [lbs]

(4) 0.55 [-] 280 [lbs]

Reference no: EM13100436

Questions Cloud

Information about binomial-poisson probabilities : Two percent of the parts from a production process are defective. A sample of five parts from the production process is selected. What is the probability that the sample contains exactly two defective parts?
Probability for testing having defective brakes : A sample of 4 trucks is randomly selected. What is the probability that 2 of those tested have defective brakes.
Complete marketing plan for the project : The purpose of the Final Project is to apply the concepts and techniques of the module to the analysis of the development of a marketing plan.
Estimate benefit cost ratio for the project : A recent project nominated for consideration at your company has a four-year cash flow of $20,000; $25,000; $30,000; and $50,000. The cost of the project is $75,000.
Draw a free body diagram and vector diagram : How many packs of shingles can the contractor lift before he begins to slide down the roof assuming the following Contractor weights and values for the coecient of static friction exists between the contractor and the roof.
Determine the value of warrants for issue : Second issue consisted of 20m year bond with 6% annual option with warrants attached. Both bonds were issued at par ($1000). Determine the value of warrants for the second issue?"
Write an environmental and industry analysis : Based on Imperial Group (semi-truck manufacturer), use the following guidelines to write an environmental analysis and an industry analysis of 350-500 words.
Average cost of repairing a vcr : The average cost of repairing a VCR is $80 with a standard deviation of 19. if one VCR is repaired, find the probability the cost is between 70 and 90.
What is the value of the force on the block due to friction : A 5 kg block slides down an inclined ramp at approximately constant velocity. The ramp angle is 23 degrees counter clockwise from the horizontal. What is the value of the force on the block due to friction between the block and the ramp? Show work..

Reviews

Write a Review

 

Physics Questions & Answers

  Calculate the total work done by the force of gravity

A bat flying in a cave emits the sound pulse and receives its echo in 3.5 s. How far away is the cave wall.

  What is the mass of this volume of water

A 186 watt motor is used to lift a 114kg container to a height of 6m. How much time does it take to lift the container with the motor.

  What emf is induced in this loop

A single loop of wire with an area of 0.0900 m2 is in a uniform magnetic field that has an initial value of 3.80 T, is vertical to the plane of the loop, and is decreasing at a constant rate of 0.190 T/s.

  What is the highest possible induced emf in the antenna

What is the highest possible induced emf in the antenna as it moves through the Earth's magnetic field.

  What is the force caused by water on the bottom

An insulated Thermos contains 119 cm3 of hot coffee at 64 °C. You put a 12g ice cube at its melting point to cool the coffee. By how a lot of degrees have your coffee cooled once the ice has melted and equilibrium is reached.

  Damped forced oscillations

Damped forced oscillations, A single stage vibration isolation system consists of a heavy granite slab (100 kg) sitting on legs which act as a vertical damped spring. The "Q" (Quality Factor) of the system is 8.0, and the velocity damping coeffici..

  Calculate the tension in a horizontal string

compass needle points 25 degrees E of N outdoors. However, as it is placed 17 cm to the east of a vertical wire inside a building it points 61 degrees E of N. What is the magnitude of the current in the wire? The earth field there is 0.50X10^-4 T ..

  Find frequencies of vibration of the piano wire

find frequencies of vibration of the piano wire. Car 1 has 3 times the mass of car 2, but only 0.5 as much kinetic energy. What is the ratio between the speeds of the two cars (v1/v2)? You must type your answer as a numerical value.

  Does it exert a nonzero torque about the pivot

A horizontal bar of negligible weight has a 55.10 lb weight hanging from the left end and a 72.0 lb weight hanging from the right end. The bar is seen to balance 97.50 in from the left end. Find the length of bar.

  What is the simmers weight in newtons

An electric wire that has a mass of 5 kg for a 20m length is strung between two poles 20 m apart. What should  be the tension in the wire if it is to take 0.8 seconds for a pulse to travel along the wire from one pole to the other.

  How long does this pendulum take for one oscillation

How long does this pendulum take for one oscillation? Presume that all displacement angles are small.

  Finding minimum transmission time

Assume you wish to send a 200 bytes long message from your equipment to a friend's machine via four intermediate nodes. You are needed to use a header size of 5 bytes per packet.

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