Problem 3: A 350 kg roller coaster car starts from rest at point A and slides down a frictionless loop-the-loop. The car's wheels are designed to stay on the track. (a) How fast is this roller coaster car moving at point B, C, and D? (b) What's the angular velocity of the car at point B and D? (c) How hard does it press against the track at point B and D? 15.0m A 300 m3 4.00 m 12.0 m
Q: m2 n the figure, the pulley has a frictionless axle. It has two grooves for the cord to wrap around:…
A: Given: r1=50 cmr2=20 cmM1=8 kgM2=13 kg The moment of inertia of the pulley is 0.62 kg.m2.
Q: A cooling fan is turned off when it is running at 930 rev/min. It turns 1,500 revolutions before it…
A:
Q: Starting at the point (4.61 m, 0 m) on the x-y plane, a physics student runs around the origin…
A:
Q: Charur Part 11 of 11 - Analyze Now Chandra and Darcel decide to try a problem. Suppose that the…
A:
Q: n 2010, the Sikorsky's X2 helicopter became the world's fastest helicopter, flying at 249 miles per…
A:
Q: You have a grindstone (a disk) that is 198.641 kg, has a 0.699-m radius, and is turning at 97.425…
A: Givenmass of the grinstone M=198.641 kgradius of the grindstone R=0.699 minitial angular speed…
Q: A ferris wheel begins at rest. During the first part of the journey, the ferris wheel accelerates…
A: Disclaimer: “Since you have asked posted a question with multiple sub-parts, we will solve the first…
Q: A turntable is off and is not spinning. A 0.9 g ant is on the disc and is 14 cm away from the…
A: The objective of the question is to find the angular velocity, tangential velocity, and tangential…
Q: A 4.1-m-diameter merry-go-round is initially turning with a 4.4 s period. It steadily slows down and…
A:
Q: A spinning solid disk, rotating with angular velocity w, is put down on a level surface. It slides…
A: Solution: We know that, the moment of inertia of solid disk is given as:I =12mr2where, m is mass and…
Q: A small block slides out along the slot in the disk with a speed of † = 4t m/s ( t is in seconds)…
A: we are given radial velocity of block r˙=4t m/s angular velocity of disc θ˙=6 rad/s radial position…
Q: A car of mass m=1500kg is moving down a level road. It comes to a hill whose cross section is semi…
A:
Q: A unicorn is standing on a rotating platform, so that it can be admired from every angle. The…
A: Given data The radius of the platform is r = 5 m The rotation of the unicorn is N = 1/8 rotations…
Q: An automobile engine slows down from 3400 rpm to 1200 rpm in 2.3 s. Part A Calculate its angular…
A:
Q: Can you assist me in solving this problem? Thank you! The cable lifting an elevator is wrapped…
A:
Q: In the figure, a solid 0.2 kg ball rolls smoothly from rest (starting at height H = 6.4 m) until it…
A:
Q: car make 94 revolutions as the car reduces its speed uniformly
A: To calculate the angular acceleration of the tires, we can use the following equation:α = (ω_f -…
Q: A wind turbine has 12,000 kg blades that are 39 m long. The blades spin at 23 rpm .If we model a…
A:
Q: A child stands on a playground merry-go-round a distance of 1.50m from the rotation axis. The…
A:
Q: Two mass are connected to cach with a rope which passes over a frictionless pulley having a radius…
A: m1 = 60 kg m2 = 40 kg a = 3 m/s2coefficient of friction = 0.25R = 30 cm
Q: turn In a typical kitchen blender, when it off, its angular velocity decreases you final 220 rev/min…
A: Given:- The initial angular velocity ωi= 570 rev/min = 9.5 rev/sec The final angular velocity ωf=…
Q: Two ladybugs are riding on a turntable as it rotates at 15 rpm as shown in (Figure 1). Figure 10 cm…
A:
Q: A bicycle wheel is rotating at 46 rpm when the cyclist begins to pedal harder, giving the wheel a…
A: initial angular velocity = W0 = 46 rpm = = 4.815 rad/sAngular acceleration = 0.5 rad/s2time = t =…
Q: After fixing a flat tire on a bicycle you give the wheel a spin. Its initial angular speed was 5.50…
A: Given: The initial angular speed is ωi=5.50 rad/s. The number of revolutions before coming to rest…
Q: A playground ride consists of a disk of mass M = 38 kg and radius R = 1.5 m mounted on a…
A:
Q: A thin circular hoop is released from rest at the top of a plane inclined at 12.1 degrees above the…
A: Given data The inclination of the inclined plane is given as θ=12.1°. The height from where the…
Q: The tires of a car make 64 revolutions as the car reduces its speed uniformly from 86.0 km/h to 63.0…
A:
Q: When you start your record player, a ladybug is sitting on the edge of the record, 15 cm from the…
A:
Q: A 2.90 kg bucket is attached to a disk-shaped pulley of radius 0.141 m and mass 0.742 kg. If the…
A: Given Data : The mass of the bucket is given as m = 2.90Kg. The mass of the pulley is given as mP =…
Q: A centrifuge in a medical laboratory rotates at an angular speed of 3,650 rev/min. When switched…
A:
Q: Chad gets on a roller coaster. Chad and the cart rolls down the frictionless loop with a constant…
A: Free body diagram:
Q: The wheel in the figure has eight equally spaced spokes and a radius of 40 cm. It is mounted on a…
A:
Q: The smooth circular bar rotates with constant angular velocity wo about the vertical axis AB. The…
A: Given Data: The radius of the circular bar is R=0.5m.The angular position where the mass is…
Q: As you drive down the road at 18 m/s, you press on the gas pedal and speed up with a uniform…
A:
Q: You have your bicycle upside down while you adjust the chain. The chain is wound around the rear…
A: .r =4cm R = 11 Ɵ = Vot + αt2/2 Vo = 0 .t = 1s Ɵ = 2(2∏) = 12.56 12.56 = 1/2α(1)2 α = 25.12 now, αR…
Q: Problem 1 Seeing Double Two blocks are connected to one another with ropes as shown on a…
A:
Q: QUESTION 11 What minimum velocity must a small roller-coaster car have at the bottom of a…
A: Given: Radius, r = 8.00 m/s Acceleration due to gravity, g= 9.8 ms2 It is required to determine…
Q: An optical disk drive in your computer can spin a disk up to 10,000 rpm (about 1045 rad/s). If a…
A: Here the concept of angular velocity, angular acceleration and tangential acceleration is used.
Trending now
This is a popular solution!
Step by step
Solved in 7 steps
- Answer the following question You are given four objects. A Solid cylinder, a thin-walled hollow cylinder, a solid sphere, and a hollow sphere. All of them have the same mass ?m, and radius ?R. They are all put on an incline plane of hight ℎh, and angle ?θ. 1a) Derive a formula for the final speed at the bottom of the ramp in terms of ?,?,ℎ,?m,R,h,I, and ?θ. 1b) Which one will get to the bottom first? (Hint: ?I is for Rotational Inertia).Please answer it within 30 minutes. I will upvote! Problem: A car initially traveling at 29.2 m/s undergoes a constant negative acceleration of magnitude 1.40 m/s2 after its brakes are applied. (a) How many revolutions does each tire make before the car comes to a stop, assuming the car does not skid and the tires have radii of 0.305 m. NOTE: Answer of (a) must differs from the correct answer by more than10%. (b) What is the angular speed of the wheels when the car has traveled half the total distance? NOTE: Answer of (b) must differs from the correct answer by more than10%.Let's do this example, following the same steps that the example but with new numbers. r (0) = 4x0 8 = π rad Odot = 0.5 rad/s Odotdot 0.25 rad/s² Mass of the motorcycle is 150 kg. a. Now using the formula: ag = rö + 2rẻ what is the radial acceleration of the motorcycle? O 4.094 m/s² O 3.047 m/s² O 5.189 m/s² O 7.236 m/s² b. Let's find using the formula: tan = Note: is the derivation of the function r about 0. OOOO O 86.6 deg O 76.6 deg O 56.6 deg O 79.2 deg d. e. f. g. C. What is the magnitude of the friction force? Give your answer as an integer What is the magnitude of the normal force? Give your answer as an integer. If the path is defined by r (0) = 30². Using:tan find the angle at = rad. Give your answer with one decimal in degree. * (0) = 1/0² 0 (t) = 5t What is the magnitude r dot at t= 0.2 second? r (0) = 10² 0 (t) = 5t What is the magnitude r dot dot at t= 0.2 second?
- In the figure, a solid 0.1 kg ball rolls smoothly from rest (starting at height H = 6.3 m) until it leaves the horizontal section at the end of the track, at height h = 2.0 m. How far horizontally from point A does the ball hit the floor? Number UnitsA car sits at rest at the starting line of a circular racetrack. It begins to accelerate at a constant rate (that 15, a constant angular acceleration) as it makes Its way halfway around the track. It then decelerates at the same constant rate during the second halt of the lap. It completes the entire lap in a time of 28.5 seconds. Also, the radius of the racetrack is 42.0 m. What is the car's top speed?A) 25.6 m/SB) 44.1 m/SC) 18.5 m/sD) 35.1 m/sThe shaft of an elevator motor turns clockwise at 180 rpm for 10 s, is at rest for 15 s, then turns counterclockwise at 240 rpm for 12.5 s. What is the angular displacement of the shaft during this motion? Draw angular position and angular velocity graphs for the shaft’s motion
- A grinding wheel 0.33 m in diameter rotates at 2900 rpm . a) What is the linear speed of a point on the edge of the grinding wheel? b) What is the acceleration of a point on the edge of the grinding wheel?A wheel is spinning at 50 rpm with its axis vertical. After 15 s, it's spinning at 67 rpm with its axis horizontal. ▼ Part A Find the magnitude of its average angular acceleration. Express your answer in radians per second squared. α= Submit Part B for Part A for Part A undo for Part A redo for Part A reset for Part A keyboard shortcuts for Part A help for Part A 0 = Find the angle the average angular acceleration vector makes with the horizontal. Express your answer in degrees. Request Answer for Part B for Part B undo for Part B redo for Part B reset for Part B keyboard shortcuts for Part B help for Part B Submit Request Answer rad/s²An optical disk drive in your computer is spinning at 10,000 rpm (1045 rad/s). It decelerates to a rest in 0.42 s. a. Find the angular acceleration. b. If the disk is 0.115 m in diameter, what is the magnitude of the tangential acceleration at a point 1/2 of the way out from the center?