Q14. A file cabinet of mass 80 kg is at rest on a ramp tilted at 10° with horizontal. What is the magnitude of the friction force on the cabinet from the ramp? A. 800 N B. 772 N C. 139 N D. 788 N E. 141 N F. None of the above 222417 100
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- Circular Motion A 1 Kg bead is confined to move on a vertical circle of radius 2 meters. There is no friction between the bead and the circular track. The bead has a speed of 10 m/s when at the top of the circle at point "A", and the total mechanical energy of the bead is assumed to be constant as it moves around the circle. Assume it takes the bead 0.62 seconds to go counter-clockwise from point "A" to point "B" each cycle. 10 m/s 2m 1 Note: vector directions should be given as the "standard" angle with 0 <0 < 360 degrees 30° Calculate the magnitude of the average velocity (m/s) from "A" to "B" (based on the 0.62 seconds mentioned in the description).Please solve this multiple choice questions and show neat and clean work3 A child of mass 20 kg on a swing hanging from a 3.0m chain is pulled by her uncle until the swing is at an angle of 30 degrees to the vertical. a) How much farther from the ground is the child now, compared to when the swing was hanging straight down? b) Since the child is motionless at he beginning and the end of the process, what can you say about the work done by gravity, and the work done by the puller on the child during the pullback? What is the amount of work her uncle does to pull back the swing? c) If he lets the swing go at this point, what is the child's speed as she passes the lowest point of the swing & the chain is vertical? Ignore the mass of the swing seat & chain.
- please explain this in depth question 13 only and there is work done on the right but i dont really understand it. why on the right hand side does 5 turn into 5/s what makees that happen. just one specific question i hope u can explain along with the rest of the problemCircular Motion A 1 Kg bead is confined to move on a vertical circle of radius 2 meters. There is no friction between the bead and the circular track. The bead has a speed of 10 m/s when at the top of the circle at point "A", and the total mechanical energy of the bead is assumed to be constant as it moves around the circle. Assume it takes the bead 0.62 seconds to go counter-clockwise from point "A" to point "B" each cycle. 10 m/s 2 m Previous A 30° Note: vector directions should be given as the "standard" angle with 0 ≤0 < 360 degrees Calculate the direction of the velocity of the bead at point "B". Enter the standard angle in degrees.You observe a car of mass 500 kg, moving at speed 5 m/s, collide with a 100 kg trailer that was at rest before the collision. When does the trailer do work on the car? Choose all that are correct. before the collision during the collision after the collision none of these
- Work can be conserved True or falseCircular Motion A 1 Kg bead is confined to move on a vertical circle of radius 2 meters. There is no friction between the bead and the circular track. The bead has a speed of 10 m/s when at the top of the circle at point "A", and the total mechanical energy of the bead is assumed to be constant as it moves around the circle. Assume it takes the bead 0.62 seconds to go counter-clockwise from point "A" to point "B" each cycle. 10 m/s 2 m 30° Note: vector directions should be given as the "standard" angle with 0≤0 < 360 degrees Calculate the average speed (m/s) from "A" to "B" (based on the 0.62 seconds mentioned in the description).two people each exert a force of 300N pulling a car by seperate ropes in the east direction. the first person pulls at an angle of 20.0 degrees N of E and the second person pulls at angle of 20.0 degrees S of E calculate the work done on the car by each worker if the car moves 0.50m/s for 5.6s
- Please answer this within 30 mins to get a thumbs up! Show neat and clean work .Thank you !Can i get help with this questionConsider the following physical situations. Identify the forces which do work upon the indicated object (in boldface type) and categorize them as conservative or non-conservative forces. Then indicate whether the total mechanical energy of the object changes; it it changes, then indicate whether the change is a positive or negative change. Finally, indicate whether the potential energy and the kinetic energy changes; if PE or KE changes, then indicate whether the change is a positive or negative change. Description of Physical Situation Identity of Forces Which Do Work: Change in TME Change in PE Change in KE Conserv. Non- Conserv. Yes (+ or -) No Yes (+ or -) No Yes (+ or -) No a. A force is applied to move a physics cart from the floor to the top of an inclined plane at a constant speed. _________ _________ _____ _____ _____ _____ _____ _____ b. A physics student scurries up a flight of stairs at constant speed. _________ _________ _____ _____ _____ _____ _____…