Two blocks, on the frictionless incline as shown in the figure below, are connected by a string of negligible mass passing over a pulley of mass M, radius R and moment of inertia I= MR. What is the magnitude of the acceleration (in m/s?) of the blocks if my = 5 kg ,ma = 8 kg, M= 4 kg and 9 = 30? T T2 m2 Lotfen birini seçin a. 3.72 b. 3.37 c. 3.59 d. 4.00 e. 415

Two blocks, on the frictionless incline as shown in the figure below, are connected by a string of negligible mass passing over a pulley of mass M, radius R and moment of inertia I= MR. What is the magnitude of the acceleration (in m/s?) of the blocks if my = 5 kg ,ma = 8 kg, M= 4 kg and 9 = 30? T T2 m2 Lotfen birini seçin a. 3.72 b. 3.37 c. 3.59 d. 4.00 e. 415

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter11: Angular Momentum

Section: Chapter Questions

Problem 89AP: A solid cylinder of mass 2.0 kg and radius 20 cm is rotating counterclockwise around a vertical axis...

See similar textbooks

Similar questions

A thin rod of length 2.65 m and mass 13.7 kg is rotated at anangular speed of 3.89 rad/s around an axis perpendicular to therod and through its center of mass. Find the magnitude of therods angular momentum.
A propeller consists of two blades each 3.0 m in length and mass 120 kg each. The propeller can be approximated by a single rod rotating about its center of mass. The propeller starts from rest and rotates up to 1200 rpm in 30 seconds at a constant rate. (a) What is the angular momentum of the propeller at t=10s ; t=20s ? (b) What is the torque on the propeller?
A solid cylinder of mass 2.0 kg and radius 20 cm is rotating counterclockwise around a vertical axis through its center at 600 rev/min. A second solid cylinder of the same mass and radius is rotating clockwise around the same vertical axis at 900 rev/min. If the cylinders couple so that they rotate about the same vertical axis, what is the angular velocity of the combination?
Consider the system shown below where four point masses are connected to each other by massless rods. Two of the masses are ?=9kgm=9kg and the other two have the masses of ?=6kgM=6kg. If ?=1.4ma=1.4m, ?=0.5mb=0.5m and the system rotates about ?−z−axis, determine the moment of inertia of the system. Express your answer in units of kg⋅m2kg⋅m2 using one decimal place.
SUBJECT : GENERAL PHYSICS 1 PS : GIVE ME A SOLUTION WHY THE ANSWER IS THAT// 7. Find the angular momentum of a 5-kg object that can complete one revolution around a circular path, with a radius of 10 meters, in 15 seconds. A. 904.22 kgm^2/s B. 750 kgm^2/s C. 200/(3pi) kgm^2/s D. 209.44 kgm^2/s 8. How will the value of angular momentum change if the mass and angular velocity is maintained but the radius of the circular path is reduced to half the original? A. Angular momentum will decrease by a factor of four. B. Angular momentum will be doubled. C. Angular momentum will be halved. D. Angular momentum will increase by a factor of four.
A 5.00-kg particle starts from the origin at time zero. Its velocityasa functionoftimeisgivenbyv = (6t 2i+ 2t j) where v is in meters per second and t is in seconds. (a) Find its position vector r as a function of time (b) its acceleration as a function of time,(c) the net force exerted on the particle as a function of time, (d) the net torque about the origin exerted on the particle as a function of time,(e)the angular momentum of the particle as a function of time,(f)the kinetic energy of the particle as a function of time, and (h)the power injected into the system of the particle as a function of time. Hint: (a) v = dr/dt and dr = vdt, r =òvdt (integrate v and get r),(b) a=dv/dt, © F=ma,(d) t = r x F (cross product) (e) L= r x mv(cross product) (f) KE=(1/2)mv2(Square v vector to get v2,i2 =j2 =1),(g) Power = first derivative of KE
A typical hard disk in a desktop computer is a uniformly solid, 400 gram disk 3.5 inches in diameter, and takes 70 milliseconds to spin from rest up to a frequency of 7200 revolutions per minute (r.p.m.). Problem 2.6. What is the moment of inertia of the disk in kgm2?Problem 2.7. Considering that work corresponds to a change in kinetic energy, how much work is done to accelerate the disk from rest to its final spinning rate?
A 4.0-m-diameter playground merry-go-round, with a moment of inertia of 400 kg ⋅ m2, is freely rotating with an angular velocity of 2.0 rad/s. Ryan, whose mass is 80 kg, runs on the ground around the outer edge of the merry-go-round in the opposite direction to its rotation. Still moving, he jumps directly onto the rim of the merry-go-round, bringing it (and himself) to a halt. How fast was Ryan running when he jumped on?A. 2.0 m/sB. 4.0 m/sC. 5.0 m/sD. 7.5 m/sE. 10 m/s
The angular momentum of a sphere is given by L = (−5.00t3) + (6.10 − 1.80t2) + (6.95t), where L has units of kg · m2/s when t is in seconds. What is the net torque on the sphere as a function of time? (Use the following as necessary: t.) τ = ___ i + ___ j + ___ k ?
Sanjay and Ting, each with a mass of 25 kgkg, are riding opposite each other on the edge of a 150 kgkg, 3.0-mm-diameter playground merry-go-round that's rotating at 21 rpmrpm. Each walks straight inward and stops 35 cmcm from the center. Part A What is the new angular velocity, in rpmrpm?
A bicycle is traveling north at 7.03 m/s. The mass of the wheel, 1.96 kg, is uniformly distributed along the rim(I=mr2), which has a radius of 21 cm. What are the magnitude(in kg m2/s) and direction of the angular momentum of the wheel about its axle? a. 2.9 , West b. 14, East c. 3.2, East d. 6.1, West
For the systems of forces and moments shown in both figures to be equivalent, the moment M must be equal to: a) (5/6)FLb) (7/6)FLc) FLd) (17/6)FL Where the axis of rotation of the figures is about their center for each one.