Q3: A frozen-juice can rests on the horizontal rack of a freezer door as shown. With what maximum angu- lar velocity 1 can the door be "slammed" shut against its seal and not dislodge the can? Assume that the can rolls without slipping on the corner of the rack, and neglect the dimension d compared with the 500-mm distance. Ans. N = 1.135 rad/s 500 mm 35 mm 7 mm

Q3: A frozen-juice can rests on the horizontal rack of a freezer door as shown. With what maximum angu- lar velocity 1 can the door be "slammed" shut against its seal and not dislodge the can? Assume that the can rolls without slipping on the corner of the rack, and neglect the dimension d compared with the 500-mm distance. Ans. N = 1.135 rad/s 500 mm 35 mm 7 mm

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 7.78P: The figure shows a steel bar being processed by a rolling mill. Given that P=80kN and r =0.016,...

See similar textbooks

Similar questions

Three friends ride a Ferris wheel with a diameter of 79m. Their combined mas with each car of the Ferris wheel is 357kg. When their car is at position A, the steel support applies 581N force at the car at an anggle of 40degrees with the horizontal. What is the speed of the cars?
A force is applied to a block to move it up a 30°incline. The incline is frictionless. If F = 65.0 N andM = 5.00 kg , what is the magnitude of the acceleration ofthe block?
pls send me answer of this question all the parts pls and i will rate you sure, pls solve a,b,c and d and also a and b A 200-kg dragster (racing car) exerts a constant force of 4000 N during a race. The coefficient of kinetic friction between the tires and the pavement is .15. If the drag strip is 1000 m long, determine:a. The net force on the dragster. b. The acceleration of the dragster. c. The time it takes for the dragster to finish the race.d. The dragster's velocity at the end of the race.The dragster now needs to slow down, so it opens a parachute. The force of air drag is 3500 N. The driver also locks the brakes of the dragster, and the coefficient of kinetic friction becomes .75. Determine:a. How long it will take to stop the dragster.b. The distance the dragster travels while stopping.
A 5-kg block is acted on a 30-N Tensile force that acts 40 degrees from the horizontal. The kinetic coefficient of friction is 0.25. What is the acceleration of the block? Draw the FBD of the given.
A skier of mass 'M' Kg starts fron rest down the hill inclined at angle 0', He skies distance 'D' meter down the hill and then coasts tor *X' meter along level snow uptil he stops. Find the coefficient of kinetic friction between the skier and the snow.
4 m 0.5m O 3 m/s² A 636-kg concrete culvert has a mean radius of 0.5m. If the truck has an acceleration of 2m/s2, determine the culverts angular acceleration. Assume that the culvert, is not attached, does not slip on the truck and neglect its thickness.
A block with mass (3 kg) is placed on a plane that is inclined by (35 degrees) to the horizontal. a) What coefficient of friction is required to keep the block from sliding down the plane? 6) If the coefficient of friction is half the value that you computed in part (a), what is the acceleration of the block down the plane? c) Given the same setup as part (b), how far does the block travel along the plane in (4 seconds)?
- H1. A wooden block of mass m is pushed over a floor in a straight line in the x direction with a constant velocity vo > 0. At time t = 0, when the block is at position x = 0, it is no longer pushed and the block experiences only a constant sliding friction force F in the negative x-direction until it comes to rest. (i) Write down the equation of motion of the block for t > 0. Calculate the time, t, at which the block comes to a stop and also find the distance, d, travelled by the block from the time when the pushing is stopped to the time when it comes to rest. (ii) Calculate the work done by the friction force from x = 0 to x = d, and then show that it is equal to the change in the kinetic energy of the block.
In the adjacent figure, two masses connected by a rope (mass ignorant) pass around the pulley of torque I. Find the acceleration of the two masses while ignoring the friction around the axis of the pulley's rotations. Then discuss the results when mi =Mz |3D missMz M2. M, =0
The two blocks started at rest. The surface of the inclined plane is frictionless. (note: neglect mass and friction of the pulley) Given: Weight of A=230 lb. Weight of B=300 Ib. Calculate: a) acceleration of A (ft/s"), 30° with the horizontal b) Acceleration of B (ft/s"), downward c) the tension in the cable (Ib.) B 30°
2. A 20 kg box sitting on a horizontal surface is pulled by a horizontal force of 64 N. The coefficient of kinetic friction between the box and the surface is 0.2. (Draw free-body diagram here) vsebn lognA en MOIT ANIMAX MATUM70038 blow 10 ode no tos 2010 Owl I 02 sa 0£to shingem seer sosot toriso 21 to obutingam and count onOno gol a. What is the normal force acting on the box?ib et bas 1910 marsib vbod-seil wai(1) b. What is the force of kinetic friction acting on the box? od no oond ton silt ei tad s c. What is the acceleration of the box? rss sdr to noitestsson sdt at tod in
An aeroplane required for take off speed of 80 km/h, the run onthe ground being 100m. The mass of the aeroplane is 10000 kgand coefficient of friction between the plane and ground is 0.2.Assume that the plane accelerates uniformly during the take off.What is the maximum force required by the engine of the plane fortake off.