A playground ride consists of a disk of mass M = 33 kg and radius R = 1.6 m mounted on a low-friction axle (see figure below). Achild of mass m = 20 kg runs at speed u = 2.6 m/s on a line tangential to the disk and jumps onto the outer edge of the disk.Part 1(a) If the disk was initially at rest, now how fast is it rotating? (Enter your answer to at least three decimal places.)Save for LaterPart 2rad/s

According to the law of conservation of angular momentum, the total angular momentum of the system…

Answered: A playground ride consists of a disk of…

Similar questions

A sphere and a ring exists. They both have a mass of M, and has a radius of r. They roll, with no slipping, down a track as depicted in the image. The two objects are at rest initially, and will shoot vertically upwards once they reach the end of the path. 1. Please explain which object, ring or sphere, will reach greater heights and why? 2. For the max height that the ring will reach, please determine and algebraic expression.
A car of mass M = 1500 kg traveling at 65.0 km/hour enters a banked turn covered with ice. The road is banked at an angle 0, and there is no friction between the road and the car's tires as shown in ( Figure 1). Use g = 9.80 m/s² throughout this problem. Figure 1 of 1 Part A What is the radius r of the turn if 0 = 20.0° (assuming the car continues in uniform circular motion around the turn)? Express your answer in meters. ► View Available Hint(s) r = Submit VE ΑΣΦ 20 ? Review | Constants | Periodic Table m
A 1550-kg car rounds a circular turn of radius 155 m, toward the left, on a horizontal road. Its angular momentum about the center of the turn has magnitude 2.86 x 10 kg m²/s. What is the direction of the car's angular momentum? O toward the center of the turn Overtically downward Submit Previous Answers vertically upward away from the center of the turn ✓ Correct Part B What is the speed of the car? Express your answer with the appropriate units. V= Part C 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 Value Submit LfinaF What is the magnitude of the car's angular momentum about the center of the turn, once it's exited the turn and is on a straight stretch of the road? Express your answer with the appropriate units. Submit Units Request Answer for Part C for Part Cundo for Part C redo for Part C reset for Part C keyboard shortcuts for Part C help for Part C Units Value Request Answer
Please solve the following question for part b
Suppose a star the size of our Sun, but with mass 8.0 times as great, were rotating at a speed of 1.0 revolution every 20 days. If it were to undergo gravitational collapse to a neutron star of radius 11 km, losing three-quarters of its mass in the process, what would its rotation speed be? Assume also that the thrown- off mass carries off either Part A no angular momentum Express your answer using two significant figures. W = Submit Part B —| ΑΣΦ Submit Request Answer ? its proportional share three-quarters of the initial angular momentum Express your answer using two significant figures. VE ΑΣΦ Request Answer rev/s B) ? rev/s
Please answer question 6 parts a-c
Let's begin with the angular acceleration of a compact disk (CD). To play music the CD must rotate at high speed while a laser reads data encoded in a spiral pattern on the disk. The disc has radius R = 6.0 cm = 0.060 m; when data are being read, it spins at 7200 rev/min. What is the CD's angular velocity w in radians per second? How much time is required for it to rotate through 90° ? If it starts from rest and reaches full speed in 4.0 s, what is its average angular acceleration? Figure 02 Δθ = 900 w= 7200 rev/min R = 0.060 m 1 of 1 0₁ SOLVE To convert the disc's angular velocity w to radians per second, we multiply by (1 min/60 s) and by (2π rad/1 rev): (1 min) (2π rad 1 rev From the definition of angular acceleration (Cav rest), the average angular acceleration is Part A - Practice Problem: W= From the definition of angular velocity (w = A0/At), we find the time At for the disc to turn through 90° (π/2 rad): π/2 rad 754 rad/s Aw/At), if the disc reaches a final angular velocity of…
FI R %24 Part A A ball of mass m moving with velocity v strikes a vertical wall as shown in (Eigure 1). The angle between the ball's initial velocity vector and the wall is 6 as shown on the diagram, which depicts the situation as seen from above. The duration of the collision between the ball and the wall is At, and this collision is completely elastic. Friction is negligible, so the ball does not start spinning. In this idealized collision, the force exerted on the ball by the wall is parallel to the x axis. What is the final angle Or that the ball's velocity vector makes with the negative y axis? Express your answer in terms of quantities given in the problem introduction. > View Available Hint(s) Of = 0; Submit Previous Answers v Correct Part B What is the magnitude F of the average force exerted on the ball by the wall? Express your answer in terms of variables given in the problem introduction and/or v;x. • View Available Hint(s) x'auz Submit Previous Answers X Incorrect; Try…
solve parts c and d only thanks
Help with this would be great, thank you!
Three students set up labs to determine the inertial mass of a metal sphere: ● ● Student 1 attaches the sphere to a vertical spring scale and measures the mass. A Student 2 uses a spring to launch the sphere across a frictionless surface and measures its acceleration. Which student is correctly measuring the inertial mass of the sphere? B Student 3 sets the sphere on a triple-beam balance and measures the mass. Choose 1 answer: Student 1 Student 2 Student 3 All three students
A spaceship in outer space has a doughnut shape with 500-m outer radius. The inhabitants stand with their heads toward the center and their feet on an outside rim, as shown in(Figure 1). Part A Over what time interval would the spaceship have to complete one rotation on its axis to make a bathroom scale have the same reading for the person in space as when on Earth's surface? Figure Express your answer with the appropriate units. HA T = Value Units Submit Request Answer Part B Complete previous part(s)