A man cleaning a frictionless floor pulls a vacuum cleaner with a force F of magnitude 50 N at an angle of 30° with the horizontal.What is the magnitude of the work done by the weight of the vacuum cleaner?A) 510 JB) 50 JOJD) 5.10 J An elevator of mass M is pulled upwards at constant velocity by a cable. What is the tension in the cable (neglecting the mass of thecable)?A zeroB between zero and MgC) less than zeroD) greater than MgE equal to Mg

Answered: Image /qna-images/answer/5cd9ed31-d220-4d8c-8f3f-c372d4627327.jpg

A man cleaning a frictionless floor pulls a vacuum cleaner with a force F of magnitude 50 N at an angle of 30° with the horizontal. What is the magnitude of the work done by the weight of the vacuum cleaner? A) 510 J B 50 J C) OJ D) 5.10 J

A man cleaning a frictionless floor pulls a vacuum cleaner with a force F of magnitude 50 N at an angle of 30° with the horizontal. What is the magnitude of the work done by the weight of the vacuum cleaner? A) 510 J B 50 J C) OJ D) 5.10 J

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

4) A plate is at a distance of 0.025 mm from a fixed plate and is moving at speed of 60 cm/s when a force of 2 N/m? is applied to maintain this speed. Compute the viscosity of fluid present between the plates.
A flat plate of area 1.5 x 10° mm? is pulled with a speed of 0.4 m/s relative to another plate located at a distance of 0.15 mm from it. Find the force and power required to maintain this speed, if the fluid separating them is having viscosity as 1 poise.
Problem 11.51 Consider the circular sign shown in (Figure 1). Figure 0.75 m 3m Next > x
A nurse applies a force of 4.40 N to the piston of a syringe. The piston has an area of 6.73 x 10-5 m². What is the pressure increase in the fluid within the syringe? кра
Draw the axial force diagrams for a bar that is subjected to distributed axial loads over portions of its length. These diagrams are typically encountered when analyzing diaphragms.
A 10.4-Mg truck is resting on the deck of a barge which displaces 321 Mg and is at rest in still water. If the truck starts and drives toward the bow at a speed relative to the barge vrel = 7.3 km/h, calculate the speed v of the barge. The resistance to the motion of the barge through the water is negligible at low speeds. l'rel = 7.3 km/h 10.4 Mg 321 Mg Answer: v = i km/h
A hydraulic lift is used to jack a 960-kg car 42 cm off the floor. The diameter of the output piston is 18 cm, and the input force is 380 N. (a) What is the area of the input piston? (b) What is the work done in lifting the car 42 cm? (c) If the input piston moves 13 cm in each stroke, how high does the car move up for each stroke? (d) How many strokes are required to jack the car up 42 cm? (e) Show that energy is conserved.
A flat plate of area 2.5 x106 mm² is pulled with a speed of 0.6m/s relative to another plate located at a distance 0.15 mm from it. Find the force and power required to maintain this speed, if the fluid separating them is having viscosity as 0.2 Ns/m².
About industrial piping, answer questions:Q 111: WHAT IS THE DIFFERENCE BETWEEN USING A FIXED LOAD SPRING SUPPORT AND A VARIABLE LOAD SPRING SUPPORT? Q 112: QUESTION: FOR THE CALCULATION OF SPAN BETWEEN SUPPORTS, WHAT IS THE BASIC LIMITATION TO DEFINE THE MAXIMUM DISTANCE BETWEEN SPANS? Q 113: QUESTION: HOW IS THE TREATMENT OF THE FORCES IN EQUIPMENT NOZZLES AND PIPE DERIVATIONS DONE? Q 114: QUESTION: WHAT IS THE PURPOSE OF THE FORM COEFFICIENT FOR THE CALCULATION OF FLEXIBILITY? Q 115: HOW SHOULD ECONOMIC SPEEDS BE USED?
A thin rod having a mass of 4 kg is balanced vertically as shown in (Figure 1). Take L = 0.85 m. Part A Determine the height h at which it can be struck with a horizontal force F and not slip on the floor. This requires that the frictional force at A be essentially zero. Express your answer to three significant figures and include the appropriate units. Figure h L 1 of 1 HÅ ? h= Value Units Submit Request Answer Provide Feedback
1Y:09 a 6.l ZAIN IQ none of all above Q21/ If the velocity distribution section of a fluid flowing over a solid surface is represented by the equation v=2y^( 2/3) where (v) represents the velocity and (y) represents a distance perpendicular to the surface, calculate the shear stress in Pa at the surface distance(20 cm,60 cm), as the viscosity is 0.025 pa.sec (0.077 - 0.06) pa (0.067 - 0.05) pa O (0.057 - 0.04)pa O none of all above O