The uniform 25-kg plate is released from rest at the position shown. (Figure 1) Determine its initial angular acceleration. Express your answer in radians per second squared to three significant figures. Enter positive value if the angular acceleration is clockwise and negative value if the angular acceleration is counterclockwise. • View Available Hint(s) vec a = rad/s? Figure < 1 of 1 > Submit Part B Determine the x and y components of reaction at the pin A using scalar notation. Express your answers in newtons to three significant figures separated by a comma. 0.5 m • View Available Hint(s) να ΑΣφ ve ? 0.5 m Az, Ay =

The uniform 25-kg plate is released from rest at the position shown. (Figure 1) Determine its initial angular acceleration. Express your answer in radians per second squared to three significant figures. Enter positive value if the angular acceleration is clockwise and negative value if the angular acceleration is counterclockwise. • View Available Hint(s) vec a = rad/s? Figure < 1 of 1 > Submit Part B Determine the x and y components of reaction at the pin A using scalar notation. Express your answers in newtons to three significant figures separated by a comma. 0.5 m • View Available Hint(s) να ΑΣφ ve ? 0.5 m Az, Ay =

Physics for Scientists and Engineers

10th Edition

ISBN:9781337553278

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter10: Rotation Of A Rigid Object About A Fixed Axis

Section10.2: Analysis Model: Rigid Object Under Constant Angular Acceleration

Problem 10.2QQ: Consider again the pairs of angular positions for the rigid object in Quick. Quiz 10.1. If the...

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A vertical rectangular object of uniform mass M=8kghas sides a=0.3m and b=0.57m. It is pivoted from point O as shown in the figure below. If a constant force of F=91N, making an angle of β=48o with diagonal is applied, determine the angular acceleration of the rectangle in SI units at the instant shown. Express your answer using one decimal places. Please use the convention: Clockwise (+), Counterclockwise (-) when expressing your answer. Hint 1: The moment of inertia of a uniform disk about an axis of rotation passing through the center of mass (CM) is ???=112?(?2+?2)ICM=112M(a2+b2). Hint 2: Don't forget the force of gravity!!! Take ?=9.80m/s2g=9.80m/s2.
A record player works at a clockwise angular speed of 3.53 rad/s, and takes 1.06 s to steadily accelerate up to that working speed when it is first switched on. Use radians as the standard unit for angles. ( I already answered the first four... but I am confused on how you find) What angle does the record rotate through during the acceleration period, in given units? for rad, rev, and angle
The topic is all about the Angular Motion of Particles. Please use pen and paper to solve and also use three decimal places. Please show the conversion solution. Thank you. Here are the formulas: θ=θ_o+ω_o t+1/2 αt^2 ω=ω_0+αt ω^2=ω_o^2+2α(θ-θ_o) considering the tangential and normal components of the acceleration in a curvilinear motion of particles: a_t=rα a_n=rω^2=vω The angular motion may be derived from the translational motion of particles by considering the given circle: s=rθ ds/dt=r dθ/dt or v=rω dv/dt=r dω/dt or a=rα
The topic is all about the Angular Motion of Particles. Please use pen and paper to solve and also use three decimal places. Please show the conversion solution. Thank you. Here are the formulas and discussion: θ=θ_o+ω_o t+1/2 αt^2 ω=ω_0+αt ω^2=ω_o^2+2α(θ-θ_o) considering the tangential and normal components of the acceleration in a curvilinear motion of particles: a_t=rα a_n=rω^2=vω The angular motion may be derived from the translational motion of particles by considering the given circle: s=rθ ds/dt=r dθ/dt or v=rω dv/dt=r dω/dt or a=rα P.S. I provide also the answer but show me the complete solution on how to get that answer
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Please do the parts after the child has jumped on! So #2, 3, and 4 2.) A 20kg child is spinning on a carousel (radius =1.5m) and accelerates to a speed of 2 m/s. 1. What is the angular velocity of the carousel? The child then jumps on 2. What is the force exerted by the child if he is hanging on the bar at the edge of the carousel? 3. Now, the child moves closer inside of the carousel and is 0.5m from the center. What is the new force of the child hanging onto the bar? What is the new force if he is 0.7m from the center? 4. After 2 minutes, the carousel slowed down at about 25%. What is the total angular displacement of the carousel during the 2 minute time (in revolutions)?
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Fred examines the range of motion of Oscar’s knee joint during rehabilitation from a knee injury. At full extension, the angle between the lower leg and thigh is 178°. At full flexion, the angle between the lower leg and thigh is 82°. During the test, Oscar’s thigh was held in a fixed position and only the lower leg moved. What was the angular displacement of Oscar’s leg from fullextension to full flexion? Express your answer in (a) degrees and (b) radians.
Jogger 1 in the figure(Figure 1) has a mass of 70.3 kg and runs in a straight line with a speed of 3.35 m/s. What is the magnitude of the jogger's linear momentum? What is the magnitude of the jogger's angular momentum with respect to the origin, O?
Please answer C, D, E The angular position of a rod varies as 20.7t2 radians from time t = 0. The rod has two beads on it as shown in the following figure, one at r1 = 13 cm from the rotation axis and the other at r2 = 32 cm from the rotation axis. (Note: figure may not be drawn to scale.) (a) What is the instantaneous angular velocity (in rad/s) of the rod at t = 3 s? (Indicate the direction with the sign of your answer. Round your answer to at least one decimal place.) 1.24.2 rad/s, ANSWERED (b) What is the angular acceleration (in rad/s2) of the rod at t = 3 s? (Indicate the direction with the sign of your answer.) 41.4 rad/s2, ANSWERED (c) What are the tangential speeds of the beads (in m/s) at t = 3 s? vt, 1 =16.146 m/s, ANSWERED vt, 2 =____m/s (d)What are the tangential accelerations of the beads at t = 3 s? (Enter the magnitudes in m/s2.) at, 1 = ______ m/s2 at, 2 = ______ m/s2 (e) What are the centripetal accelerations of the beads at t = 3 s? (Enter the magnitudes…
Topic: Angular Momentum Show the complete solution. 1. An object rotates at 3 rad/s and has a moment of inertia of 5 kg•m2. What is the object’s angular momentum? 2. A 0.5 kg sphere rotates at a constant angular speed of 5 rad/s. What is the angular speed if it has a uniform radius of 25 cm. (Hint: Determine first the moment of inertia of the spehere.) 3. A merry-go-round at a playground is rotating at 4.0 rev/min. Three children jump on and increase the moment of inertia of the merry-go-round/children rotating system by 25%. What is the new rotation rate (in rad/s)?
I am trying to find the final angular velocity of a cylinder after you throw a ball at it. The knowns are shown in the images that will show the context of the problem. The value I have already solved for is the angular velocity after disk 1 is dropped on disk 2 which is -6.7697 rad/s, the other value is the change in thermal energy created from the collision which is 5258.629 J. thanks.