Problem 1CQ Problem 2CQ: If the angular velocity w is held constant, by what factor must R change to double the rotational... Problem 3CQ: FIGURE Q12.3 shows three rotating disks, all of equal mass. Rank in order, from largest to smallest,... Problem 4CQ: 4. Must an object be rotating to have a moment of inertia? Explain.
Problem 5CQ: 5. The moment of inertia of a uniform rod about an axis through its center is mL2. The moment of... Problem 6CQ: 6. You have two solid steel spheres. Sphere 2 has twice the radius of sphere 1. By what factor does... Problem 7CQ: The professor hands you two spheres. They have the same mass. the same radius, and the same exterior... Problem 8CQ: Six forces are applied to the door in FIGURE Q12.8. Rank in order, from largest to smallest, the six... Problem 9CQ Problem 10CQ: Rank in order, from largest to smallest, the angular accelerations aato adin FIGURE Q 12.10.... Problem 11CQ: The solid cylinder and cylindrical shell in FIGURE Q12.11 have the same mass, same radius, and turn... Problem 12CQ: A diver in the pike position (legs straight, hands on ankles) usually makes only one or... Problem 13CQ Problem 1EAP: A high-speed drill reaches 2000 rpm in 0.50 s. a. What is the drills angular acceleration? b.... Problem 2EAP: A skater holds her arms outstretched as she spins at 180 rpm. What is the speed of her hands if they... Problem 3EAP: A ceiling fan with 80-cm-diameter blades is turning at 60 rpm. Suppose the fan coasts to a stop 25 s... Problem 4EAP: An 18-cm-long bicycle crank arm, with a pedal at one end. is attached to a 20-cm-diameter sprocket,... Problem 5EAP Problem 6EAP: The three masses shown in FIGURE EX12.6 are connected by massless, rigid rods. What are the... Problem 7EAP: The three masses shown in FIGURE EX12.7 are connected by massless, rigid rods. What are the... Problem 8EAP: A 100 g ball and a 200 g ball are connected by a 30-cm-long. massless, rigid rod. The halls rotate... Problem 9EAP: A thin, 100 g disk with a diameter of 8.0 cm rotates about an axis through its center with 0.15 J of... Problem 10EAP: What is the rotational kinetic energy of the earth? Assume the earth is a uniform sphere. Data for... Problem 11EAP: The three200g masses in FIGURE EX12.11 are connected by massless, rigid rods. a. What is the... Problem 12EAP: A drum major twirls a 96-cm-long, 400 g baton about its center of mass at 100 rpm. What is the... Problem 13EAP: The four masses shown in FIGURE EX12.13 are connected by massless, rigid rods. a. Find the... Problem 14EAP: The four masses shown in FIGURE EXI2.13 are connected by massless. rigid rods. a. Find the... Problem 15EAP: The three masses shown in FIGURE EXI2.15 are connected by massless, rigid rods. a. Find the... Problem 16EAP: A 12-cm-diameter CD has a mass of 21 g. What is the CD’s moment of inertia for rotation about a... Problem 17EAP: A 25 kg solid door is 220 cm tall, 91 cm wide. What is the door’s moment of inertia for (a) rotation... Problem 18EAP Problem 19EAP: In FIGURE EX12.19, what magnitude force provides 5.0 N m net torque about the axle? Problem 20EAP: The 20-cm-diameter disk in FIGURE EX12.20 can rotate on an axle through its center. What is the net... Problem 21EAP: The axle in FIGURE EXI2.21 is half the distance from the center to the rim. What is the net torque... Problem 22EAP: A 4.0-rn-long, 500 kg steel beam extends horizontally from the point where it has been bolted to the... Problem 23EAP: An athlete at the gym holds a 3.0 kg steel ball in his hand. His arm is 70 cm long and has a mass of... Problem 24EAP: An object’s moment of inertia is 2.0 kg m2. Its angular velocity is increasing at the rate of 4.0... Problem 25EAP: An object whose moment of inertia is 4.0 kg m2 experiences the torque shown in FIGURE EX12.25. What... Problem 26EAP: A 1.0 kg ball and a 2.0 kg ball are connected by a 1.0-m-long rigid, massless rod. The rod is... Problem 27EAP: Starting from rest, a 12-cm-diameter compact disk takes 3.0 s to reach its operating angular... Problem 28EAP: A 4.0 kg, 36-cm-diameter metal disk, initially at rest, can rotate on an axle along its axis. A... Problem 29EAP: The two objects in FIGURE EXI2.29 are balanced on the pivot. What is distance d? Problem 30EAP Problem 31EAP: The 3.0-rn-long, 100 kg rigid beam of FIGURE EX12.31 is supported at each end. An 80 kg student... Problem 32EAP: A 5.0 kg cat and a 2.0 kg bowl of tuna fish are at opposite ends of the 4.0-rn-long seesaw of FIGURE... Problem 33EAP: A car tire is 60cm in diameter. The car is traveling at a speed of 20 m/s. a. What is the tires... Problem 34EAP: A 500 g, 8.0-cm-diameter can is filled with uniform, dense food. It rolls across the floor at 1.0... Problem 35EAP Problem 36EAP: A solid sphere of radius R is placed at a height of 30 cm on a 15° slope. It is released and rolls,... Problem 37EAP Problem 38EAP: Evaluate the cross products AB and CD . Problem 39EAP Problem 40EAP: Force F=10j N is exerted on a particle at 5i+5j m. What is the torque on the particle about the... Problem 41EAP: A 1.3 kg ball on the end of a lightweight rod is located at (x, y) = (3.0 m, 2.0 m), where the... Problem 42EAP: What are the magnitude and direction of the angular momentum relative to the origin of the 200 g... Problem 43EAP: What is the angular momentum vector of the 2.0 kg, 4.0-cm-diameter rotating disk in FIGURE EX12.43? Problem 44EAP Problem 45EAP Problem 46EAP: A 2.0 kg, 20-cm-diameter turntable rotates at 100 rpm on frictionless bearings. Two 500 g blocks... Problem 47EAP Problem 48EAP: A toy gyroscope has a ring of mass M and radius R attached to the axle by lightweight spokes. The... Problem 49EAP Problem 50EAP Problem 51EAP: Determine the moment of inertia about the axis of the object shown in FIGURE P12.51. Problem 52EAP: What is the moment of inertia of a 2.0 kg, 20-cm-diameter disk for rotation about an axis (a)... Problem 53EAP: Calculate by direct integration the moment of inertia for a thin rod of mass M and length L about an... Problem 54EAP: Calculate the moment of inertia of the rectangular plate in FIGURE P12.54 for rotation about a... Problem 55EAP: a. A disk of mass M and radius R has a hole of radius r centered on the axis. Calculate the moment... Problem 56EAP: Consider a solid cone of radius R, height H, and mass M. The (AIX volume of a cone is 13HR2. a. What... Problem 57EAP Problem 58EAP: A 3.0-m-long ladder, as shown in Figure 12.35. leans against a frictionless wall. The coefficient of... Problem 59EAP: In FIGURE P12.59, an 80 kg construction worker sits down 2.0 m from the end of a 1450 kg steel beam... Problem 60EAP Problem 61EAP Problem 62EAP: A 120-cm-wide sign hangs from a 5.0 kg, 200-cm-long pole. A cable of negligible mass supports the... Problem 63EAP Problem 64EAP: Flywheels are large, massive wheels used to store energy. They can be spun up slowly, then the... Problem 65EAP: of mass m1and m2are connected by a massless string that passes over the pulley in FIGURE P12.65. The... Problem 66EAP: The 2.0 kg, 30-cm-diameter disk in FIGURE P12.66 is spinning at 300 rpm. How much friction force... Problem 67EAP: A 30-cm-diameter, 1.2 kg solid turntable rotates on a 1.2-cm-diameter, 450 g shaft at a constant 33... Problem 68EAP: Your engineering team has been assigned the task of measuring the properties of a new jet-engine... Problem 69EAP: A hollow sphere is rolling along a horizontal floor at 5.0 m/s when it comes to a 30° incline. How... Problem 70EAP: A 750 g disk and a 760 g ring, both 15 cm in diameter, are rolling along a horizontal surface at 1.5... Problem 71EAP: A cylinder of radius R, length L. and mass M is released from rest on a slope inclined at angle .... Problem 72EAP: The 5.0 kg, 60-cm-diameter disk in FIGURE P12.72 rotates on an axle passing through one edge. The... Problem 73EAP: A thin, uniform rod of length L and mass M is placed vertically on a horizontal table. If tilted... Problem 74EAP: A long, thin rod of mass M and length L is standing straight up on a table. Its lower end rotates on... Problem 75EAP: The marble rolls down the track shown in FIGURE P12.75 and around a loop-the-loop of radius R. The... Problem 76EAP: sThe sphere of mass M and radius R in FIGURE P12.76 is rigidly attached to a thin rod of radius r... Problem 77EAP: A satellite follows the elliptical orbit shown in FIGURE P12.77. The only force on the satellite is... Problem 78EAP: A 10 g bullet traveling at 400 m/s strikes a 10 kg, 1.0-m-wide door at the edge opposite the hinge.... Problem 79EAP: A 200 g, 40-cm-diameter turntable rotates on frictionless bearings at 60 rpm. A 20 g block sits at... Problem 80EAP: Luc, who is 1.80 m tall and weighs 950 N, is standing at the center of a playground merry-go-round... Problem 81EAP: A merry-go-round is a common piece of playground equipment. A 3.0-m-diameter merry-go-round with a... Problem 82EAP: A 45 kg figure skater is spinning on the toes of her skates at 1.0 rev/s. Her arms are outstretched... Problem 83EAP Problem 84EAP: The earth’s rotation axis, which is tilted 23.5 from the plane of the earth’s orbit, today points to... Problem 85EAP: sThe bunchberry flower has the fastest-moving parts ever observed in a plant. Initially, the stamens... Problem 86EAP: The two blocks in FIGURE CP12.86 are connected by a massless rope that passes over a pulley. The... Problem 87EAP: A rod of length L and mass M has a nonuniform mass distribution. The linear mass density (mass per... Problem 88EAP: In FIGURE CP12.88, a 200 g toy car is placed on a narrow 60-cm-diameter track with wheel grooves... Problem 89EAP Problem 90EAP: A 75 g, 30-cm-long rod hangs vertically on a frictionless, horizontal axle passing through its... format_list_bulleted