QUESTION 1 The 43 kg disk shown in the figure below is pin supported at its...
A disk rotates about its central axis starting from rest and accelerates with constant angular acceleration. At one time it is rotating at 5 rev/s. Then 55 revolutions later, its angular speed is 16 rev/s. (a) Calculate the angular acceleration. rev/s2 (b) Calculate the time required to complete the 55 revolutions mentioned. s (c) Calculate the time required to attain the 5 rev/s angular speed. s (d) Calculate the number of revolutions from rest until the time the disk attained...
Problem: A pulley, consists of a disk of radius R=0.2 m and mass M= 50 kg is mounted on a nearly frictionless axle. A string is wrapped lightly around the pulley, and you pull on the string with a constant force, F = 100 N. If the pulley starts from rest, what is the angular speed at a time At = 1 s later? Assume that the string does not slip on the pulley. Note: Moment of inertia of a...
The reel shown in Figure P10.70 has radius R and moment of inertia I. One end of the block of mass m is connected to a spring of force constant k and the other end is fastened to a cord wrapped around the reel. The reel axle and the incline are frictionless. The reel is wound counterclockwise so that the spring stretches a distance d from its unstretched position and is then released from rest. (a) Find the angular speed...
F10.5 N 12.0 cm F-10.5 N 31.0 cm Figure 1: The diagram for problem 3 showing a disk's movement with a string wrapped around it. (3) A string is wrapped around a disk of mass 2.60 kg. Starting from rest, you pull the string with a constant force of 10.5 N along a mearly frictionless surface. At the instant when the center of mass of the disk has moved a distance of 0.120 m, your hand has moved a distance...
positive direction) Multiple Choice 15% each! 1. A solid uniform sphere of mass 1.85 kg and diameter 45.0 cm spins about an axle through its center. Starting with an angular velocity of 2.40 revisit stops after turning through 18.2 rev with uniform acceleration. The net torque acting on this sphere as it is slowing down is dosest to (A) 0.0466 Nm (B) 0.00593 Nm (C) 0.0620 Nm (D) 0.149 Nm (E) 0.0372 Nm 2. If the torque on an object...
Please answer all parts of question (a-c). 4:45 PM 33% AT&T Notes May 1, 2019 at 4:45 PM Problem 1 a) A uniform beam (5.00 m long, 40.0 kg) is attached to the wall and supported by a cable at the far end, as shown. A 60.0 kg box is placed in the middle of the beanm What is the tension in the cable? b) A wheel in the shape of a solid disk (mass 250 g, radius 30.0 cm)...
Question 1 of 3 Question 1 2.5 points Save Answer Determine the mass moment of inertia of the pendulum about an axis perpendicular to the page and passing through point O The slender rod has a massi of 10 kg and the sphere has a mass of 30 kg kg m2 (A 0.675 B. 9.195 C. 9.870 D. 7.971) the mass moment of inertia, lo (Choose the correct answer. If the correct answer is B. 490.5 type B or b...
please give anwers ? wuestion 01/20 Marks The vendita a ty and the price at the where relation when 2 A , what is the I (5 km/whereth theme of the n dia sention of the partie hectory tract with constant d ong the path that for a short distantes tromos rec ome the sandy ortoit vnity at instant on the cure Aybladet The Scenes pinned at and as a result of the constant prote dhes the peg For a...