Elucidate how hard the man has to pull on the rope to lift

Assignment Help Physics
Reference no: EM13117421

the man and the platform together weigh 1200 N. The pulley can be modeled as frictionless. Determine how hard the man has to pull on the rope to lift himself steadily upward above the ground.

Reference no: EM13117421

Questions Cloud

The results of changing the legal driving : 1. An essay exploring the question, "What would be the results of changing the legal driving age to 18?" would be a/an _______.  Answer  comparison/contrast essay  cause essay  effects essay  argument essay
Illustrate what is angular velocity of merry-go-round now : Illustrate what is the angular velocity of the merry-go-round now? What if the people were on it initially and then jumped off in a radial direction (relative to the merry-go-round)?
Find freshmen class needing financial aid has increased : In a random sample of 150 freshman applications received thus far, 67 of the applicants request financial aid. Is there evidence that the proportion of next year's freshmen class needing financial aid has increased?
Examine the messages using the communication process : Examine the messages using the communication process. The analysis should include a descriptive explanation of characteristics that would improve the messages, including the following
Elucidate how hard the man has to pull on the rope to lift : the man and the platform together weigh 1200 N. The pulley can be modeled as frictionless. Elucidate how hard the man has to pull on the rope to lift himself steadily upward above the ground.
What is the molar enthalpy of vaporization of chlorine : At its boiling point of -34.0 degree Celsius, 6.33 kJ of heat is required to vaporize 22.0 g of chlorine (Cl2). What is the molar enthalpy of vaporization of chlorine.
Elucidate through what angle does the wheel rotate : A wheel rotates with a constant angular acceleration of 4.35 rad/s2. Suppose that the initial angular speed of the wheel is 2.99 rad/s. Elucidate through what angle does the wheel rotate after 2.88 s?
Evidence responses differ among three groups of employees : A breakdown of the responses is shown in the accompanying table. Is there evidence at the 10% level to infer that the responses differ among the three groups of employees?
Explain how long is the bullet in the air : A bullet is fired at an angle of 60o with an initial velocity of 200.0 m/s. Explain how long is the bullet in the air? What is the maximum height reached by the bullet?

Reviews

Write a Review

Physics Questions & Answers

  What is the initial total mechanical energy of projectile

What is the speed of the projectile immediately before it hits the ground if air friction does one and a half times as much work on projectile when it is going down as it did when it was going up.

  What is the frictional force

What is the frictional force

  Calculate friction force as it slides down the slope

An 86 Kg person stands on a uniform ladder 4m long, that weighs 70N. The floor is rough; hence, it exerts both a normal force, and a frictional force, on ladder. The wall, on the other hand, is frictionless; it exerts only the normal force. What a..

  What is the total energy stored in this oscillation

A 0.39 kg iron horseshoe that is initially at 745°C is dropped into a bucket containing 24 kg of water at 46°C. What is the final equilibrium temperature? Neglect any heat transfer to or from the surroundings.

  Find the mass of flesh that can be heated

Steam can cause more serious burns than water at the same temperature. Here we examine this effect quantitatively, noting that flesh becomes badly damaged when its temperature reaches 50.0 C a)Calculate the heat released as 13.0g of liquid water a..

  What is the maximum potential difference

A wheel 45.0 cm in diameter accelerates uniformly from 206rpm to 340 rpm in 7.0 s. How far will a point on edge of the wheel have travelled in this time.

  Calculate the elongation in mm and the strain

At the same time, the stationary trumpeter played the same note. Ballot heard 3.0 beats per second. How fast was the train moving toward him.

  What is the amplitude a of each wave

A container of hot water at 50 degrees cools to 49 degrees in how many seconds when it is placed in a room that is t 20 degrees. use newton's law of cooling to find the time it will take for the container to cool from 50 degrees to 49 degrees.

  What is the spacing d between the planes of the crystal

When the tire surface is rotating at the maximum speed of 12 m/s stone flies out of the tread. The magnitude FN of the normal force that each side of the tread channel exerts on the stone is 1.8 N. suppose that only static friction supplies centripet..

  Find the mass flow rate in through the vent of the enclosure

Find the mass flow rate in through the vent in question #1 using the following well-known relationship for the mass flow into an opening:

  Identify the person velocity just before hitting the net

Assuming that air resistance exerts a 95 N force on the person during the fall, identify the person's velocity just before hitting the net.

  Compare the gravitational lens to the one found in telescope

Compare the gravitational lens to the one found in a telescope.

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