The tensions of a flat belt are;tight side 500N and slack side 180N.the angular speed N and diameter D of the pulley are 280rev/min and 20cm respectively.if the coefficient of friction between the belt and the pulley 0.6 and the mass m of the belt is 1.2kg/m, including centrifugal tension, Determine; (a) initial tension of the belt (b) angle of lap in degrees (C) power transmitted in the kilowatt (D) maximum power attainable in kilowatt

The tensions of a flat belt are;tight side 500N and slack side 180N.the angular speed N and diameter D of the pulley are 280rev/min and 20cm respectively.if the coefficient of friction between the belt and the pulley 0.6 and the mass m of the belt is 1.2kg/m, including centrifugal tension, Determine; (a) initial tension of the belt (b) angle of lap in degrees (C) power transmitted in the kilowatt (D) maximum power attainable in kilowatt

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.81P: Calculate the horizontal force P required to push the 85-lb lawn mower at constant speed. The center...

See similar textbooks

Similar questions

Calculate the horizontal force P required to push the 85-lb lawn mower at constant speed. The center of gravity of the mower is at G, and the coefficients of rolling resistance are 0.12 for the front wheels and 0.18 for the rear wheels.
A block of mass M1 resting on an inclined plane is connected by a string and pulleys to another block of mass M2 as shown in Fig. Find the tension in the string and acceleration of the blocks. Assume the coefficient of friction between the blocks M1 and the plane to be 0.2. M1=1500N , M2=1000N . Angle of inclined glane = 45 degrees
The mass of the belt is 0.6kg/m and the tension on the tight side of the belt is 1.7kN.the coefficient of friction between the belt and the pulley is 0.2 and the angular speed N, of the belt is 400rpm.Angle of lap fita and the diameter D of the pulley are 150° and 50cm respectively.with the addition of centrifugal tension, Design the belt drive by determine (A) velocity of the belt (B) centrifugal tension (C) tension on the slack side of the belt (D) power transmitted at this speed in kilowatts (E) maximum
A pulley system uses a flat belt of cross sectional area 500 mm2 and density 1300 kg/m3. The angle of lap is 165O on the smaller wheel. The coefficient of friction is 0.35. The maximum force allowed in the belt is 600 N. If the the diameter of the smaller wheel is 50 cm and rotates at 3850 rpm , determine Initial tension in the belts and Power transmitted.
200lp box is at rest in the beginning on horizontal surface and force T=100lb and P applied shown. coefficient of static and kinetic friction is us= 0.3 and uk=0.2. find acceleration of block if p=100lb and p=250lb
consider the mass and pulley system in the attached file. mass m1 = 29 kg and mass m2 = 12kg. the angle of the inclined plane is given and the coefficient of kinetic friction between mass m2 and the inclined plane is uk = 0.12. assume the pulleys are massless and frictionless when mass m2 moves a distance 4.94 m up the ramp, how far downward does mass m1 move? d= ?
A centrifugal clutch has four shoes, each of mass 0·35 kg. When at rest, the radialclearance between the shoes and the clutch drum is 15 mm and the radius to the centre ofgravity of the shoes is 225 mm. The shoes are held on retaining springs of stiffness 10kN/m and the internal diameter of the clutch drum is 600 mm. The coefficient of frictionbetween the drum and the shoes is 0·3.Determine:(a) The speed (in rev/min) at which the clutch starts to engage. For a rotational speed of 1200 rev/min:(b) The force each shoe exerts on the drum. (c) The torque transmitted. (d) The power transmitted.
3. A vehicle, mass 1400 kg, passes a bend at a speed of 54 km/hr. The radius of curvature of the road is 60 m. Determine the minimum coefficient of static friction between the car tires and the road, so that the car can pass through corners safely.
A 3.08-g bullet embeds itself in a 1.7-kg block, which is attached to a spring of force constant 827-N/m. If the maximum compression of the spring is 4.45-cm, find the time of the bullet-block system to come to rest. Provide your final answer in milli seconds.
1) Jonny pulls his sister Jane (weight 28 lbs), who is sitting in a wagon, up an incline ramp (θ = 17°) with a steady speed. If the coefficient of kinetic friction is 0.18, the wagon has a mass of 14 kg, and the length of the ramp is 2.4 m, find: the work done by the frictional force. the work done by the gravitational force.
A person is pushing two boxes placed side by side with each other. What is the acceleration caused by the applied force if the net force is 107.33 N, the coefficient of kinetic friction of the boxes is 0.043 and the sum of the mass of the boxes is 91.5 kg? Is it possible to have one of the boxes generate an applied force of 123.16 N, if yes, what is the mass of the other box?
Consider the following arrangement of masses: Mass 1 is connected to mass 2 by a very light string and moves over a frictionless pulley so that both masses move with the same speed and move the same distances (?2 to the right a distance ? and ?1 down a distance ?).Assume ?1 = 15 ??, ?2 = 15 ??, and the coefficient of kinetic friction between ?2 and the table is ?? = 0.73. Let the masses start with an initial speed of 1.00 m/s. What is their speed after moving 1.00 cm (? = 0.0100 ?)?