a) Kinetic (as suitcase is accelerating)
b) negative (friction always does a negative work)
c) Zero (constant speed = zero force)
Drop suitcase on conveyor belt. a) A stationary suitcase is placed on a moving conveyor belt....
A hucket drops sand vertically onto a moving conveyor-belt at the rate of 5.70 kgis. The rubber conveyor-belt is supported by wheels (frictionless) and moves at a constant speed of tha motor that drivas the belt. - D.710 m/s under the action of a constant horizontal axternal force supplied by Figure P9.87 (a) Find the sands rate of change of momentum in the horizontal direction. (b) Find the force ot friction exerted by the belt on the sand (c) Find...
When being unloaded from a moving truck, a 15.5- kilogram suitcase is placed on a flat ramp inclined at 33.0 o. When released from rest, the suitcase accelerates down the ramp at 1.32 m/s². What is the coefficient of kinetic friction between the suitcase and the ramp?
When being unloaded from a moving truck, a 18.0- kilogram suitcase is placed on a flat ramp inclined at 30.0 o. When released from rest, the suitcase accelerates down the ramp at 1.37 m/s². What is the coefficient of kinetic friction between the suitcase and the ramp?
Fluid Mechanics Fluid Mechanics 5. (20 points) A horizontal conveyor belt moving at 3 m/s receives sand from a container. The sand falls vertically from the container to the belt at a speed of 1.5 m/s and a flow rate of 200 kg/s. The conveyor belt is initially empty but begins to fill with sand. If the friction in the drive system and rollers is negligible. find the force required to pull the belt while the conveyor is filling. sand...
A crate is moving on a conveyor belt at a speed of 5 ft/s when it is delivered at point A to a ramp with an angle of 30 degrees. If the kinetic coefficient between the crate and the ramp is 0.20, find the speed of the crate when it reaches point B. Report your answer in ft/s. 5 ft/s A 20 Ft B
A crate is moving on a conveyor belt at a speed of 5 ft/s when it is delivered at point A to a ramp with an angle of 30 degrees. If the kinetic coefficient between the crate and the ramp is 0.20, find the speed of the crate when it reaches point B. Report your answer in ft/s. 5 ft/s A 20 ft B
It is sometimes claimed that friction forces always slow an object down, but this is not true. If you place a box of mass 3 kg on a moving horizontal conveyor belt, the friction force of the belt acting on the bottom of the box speeds up the box. At first there is some slipping, until the speed of the box catches up to the speed of the belt, which is 3 m/s. The coefficient of kinetic friction between box...
answer is 4.pls explain well. 27/A conveyor belt is moving at a constant speed of 2 m/s. A box is gently dropped on it. The coefficient of friction between them is u 0.5. The distance that the box will move re before coming to rest on it taking g 10 ms2 belt (2) 0.6 m (3) zero (4) 0
The wheels fall off Beatrice's suitcase, so she ties a rope to it and drags it along the floor of the airport terminal. The rope makes a 40.0 degree angle with the horizontal. The coefficient of kinetic friction between the suitcase and the marble floor is μk=0.12. The suitcase has a mass of 35.0kg and Beatrice pulls on the rope with a force of 65N. (a) Draw a free body diagram of he suitcase . (b) What is the acceleration...
The 180-mm disk is at rost when it is placed in contact with a belt moving at a constant speed. Neglecting the weight of the link AB and knowing that the coefficient of kinetic friction between the disk and the belt is 0.47, determine the angular acceleration of the disk while slipping cours (Round the final answer to one decimal place) The angular acceleration of the disk is radi?