Homework Answers
Concept : Net torque on pulley = mass moment of inertia * angular acceleration
After finding angular acceleration of pulley, linear acceleration of Block A will be find out. And then velocity of block A will be determined using equation of motion.
Velocity of block A after descended 0.5 ft = 128.3 inch per second or 10.7 ft per second
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Problem 2. The compound disk pully consists of a hub and attached outer rim. The...
The compound disk pully consists of a hub and attached outer rim. The pulley has a...
The compound disk pully consists of a hub and attached outer rim. The pulley has a weight of 6 lb and a radius of gyration of kg = 1.5". The system is initially at rest. Blocks A and Beach weigh 4 lb. Find: The speed of block A when A has descended 0.5 ft after being released from rest. B
aerslon 2 Part D (Rotational Dynamics and Oscillations) Problem D1: A disk-shaped pulley has mass M...
aerslon 2 Part D (Rotational Dynamics and Oscillations) Problem D1: A disk-shaped pulley has mass M 4kg and radius R 0.5cm, It rotates freely on a horizontal axis. A block of mass m 2kg hangs by a string that is tightly wrapped around the pulley. Assume the system starts from rest. Moment of inertia of a disk is I Ma 4-0.5 5 2 M R 1) What is the acceleration of the block? 2) What is the angle velocity of...
Version 2 Part D (Rotational Dynamics and Oscillations) Problem D1: A disk-shaped pulley has mass M...
Version 2 Part D (Rotational Dynamics and Oscillations) Problem D1: A disk-shaped pulley has mass M = 4kg and radius R=0.5cm. It rotates freely on a horizontal axis. A block of mass m = 2kg hangs by a string that is tightly wrapped around the pulley. Assume the system starts from rest. Moment of inertia of a disk is I = * 1) What is the acceleration of the block? 2) What is the angle velocity of the pulley 3s...
The double pulley consists of two parts that are attached to one another. It has a...
The double pulley consists of two parts that are attached to one
another. It has a weight of 49 lb and a centroidal radius of
gyration of kO=0.6ft and is turning with an
angular velocity of 20 rad/s clockwise.
(Figure 1)
Part A
Determine the angular velocity of the pulley at the instant the
20-lb weight moves 2 ft downward.
Express your answer to three significant figures and include the
appropriate units.
20 rad/s 0.5ft 1ft В 301b A 20...
2. The weight of the disk is 30 lb and its radius of gyration equals 0.6...
2. The weight of the disk is 30 lb and its radius of gyration equals 0.6 ft. The spring has a stiffness of 2 lb/ft and an unstretched length of 1 ft. Find the velocity of the center G at the instant G moves 3 ft to the left. Assume that the disk is released from rest in the position shown and rolls without slipping. k=2 lb/ft
PHY 1001-05 Homework Assignment 2 1. A frictionless pulley in the shape of a solid disk...
PHY 1001-05 Homework Assignment 2 1. A frictionless pulley in the shape of a solid disk is supported from the ceiling. Massless string is wrapped several times around its outer rim and tied to a block. The mass of the pulley is 2.50 kg and the mass of the lab weight is 1.50 kg. The pulley and block are released from rest. The radius of the disk is R-20 cm. See Fig. a. Starting with conservation of energy: ΔΚ. ar...
Part D (Rotational Dynamics and Oscillations) Problem D1: A disk-shaped pulley has mass M = 4kg...
Part D (Rotational Dynamics and Oscillations) Problem D1: A disk-shaped pulley has mass M = 4kg and radius R = 0.5cm. It rotates free axis. A block of mass m = 2kg hangs by a string that is tightly wrapped ar the system starts from rest. Moment of inertia of a disk is I = 2 gs by a string that is tightly wrapped around the pulley. Assume m.it rotates freely on a horizontal M 1) What is the acceleration...
due in 30 min 8. (10 points) Picture taken from problem 19-21. The spool has a...
due in 30 min
8. (10 points) Picture taken from problem 19-21. The spool has a weight of 30 lb and a radius of gyration ko=0.45 ft. A cord is wrapped around the spool's inner hub and the end of the chord is subjected to a horizontal force P = 5 lb. Assume the spool rolls and slips. The coefficient of friction between the spool and the ground is uk = 0.1. Determine the spool's angular velocity in 4 s...
ip a 1.2 kg block is tied to a string that is wrapped around the rim...
ip a 1.2 kg block is tied to a string that is wrapped around
the rim of a pulley of radius 7.1cm. the block is released from
rest. EXPLAIN
l, LhandlerSig Hide Timer Part A Assuming the pulley is a uniform disk with a mass of 0.31 kg, find the speed of th block after it has fallen through a height of 0.50 m Express your answer using two significant figures. 2 m/s Submit Submit Request Answer Part B 1033...
3. [15 points) The double pulley consists of two wheels which are attached to one another...
3. [15 points) The double pulley consists of two wheels which are attached to one another and turn at the same rate. The radii of the inner andouter pulleys are 0.1 m and 0.3 m respectively as shown. The pulley has a mass of 30 kg and a radius of gyration of ko = 0.2 m. The block A has a mass of 10 kg. A force F is applied to the rope wrapped around the inner hub of the...
The compound disk pully consists of a hub and attached outer rim. The pulley has a weight of 6 lb and a radius of gyration of kg = 1.5". The system is initially at rest. Blocks A and Beach weigh 4 lb. Find: The speed of block A when A has descended 0.5 ft after being released from rest. B
aerslon 2 Part D (Rotational Dynamics and Oscillations) Problem D1: A disk-shaped pulley has mass M 4kg and radius R 0.5cm, It rotates freely on a horizontal axis. A block of mass m 2kg hangs by a string that is tightly wrapped around the pulley. Assume the system starts from rest. Moment of inertia of a disk is I Ma 4-0.5 5 2 M R 1) What is the acceleration of the block? 2) What is the angle velocity of...
Version 2 Part D (Rotational Dynamics and Oscillations) Problem D1: A disk-shaped pulley has mass M = 4kg and radius R=0.5cm. It rotates freely on a horizontal axis. A block of mass m = 2kg hangs by a string that is tightly wrapped around the pulley. Assume the system starts from rest. Moment of inertia of a disk is I = * 1) What is the acceleration of the block? 2) What is the angle velocity of the pulley 3s...
The double pulley consists of two parts that are attached to one
another. It has a weight of 49 lb and a centroidal radius of
gyration of kO=0.6ft and is turning with an
angular velocity of 20 rad/s clockwise.
(Figure 1)
Part A
Determine the angular velocity of the pulley at the instant the
20-lb weight moves 2 ft downward.
Express your answer to three significant figures and include the
appropriate units.
20 rad/s 0.5ft 1ft В 301b A 20...
2. The weight of the disk is 30 lb and its radius of gyration equals 0.6 ft. The spring has a stiffness of 2 lb/ft and an unstretched length of 1 ft. Find the velocity of the center G at the instant G moves 3 ft to the left. Assume that the disk is released from rest in the position shown and rolls without slipping. k=2 lb/ft
PHY 1001-05 Homework Assignment 2 1. A frictionless pulley in the shape of a solid disk is supported from the ceiling. Massless string is wrapped several times around its outer rim and tied to a block. The mass of the pulley is 2.50 kg and the mass of the lab weight is 1.50 kg. The pulley and block are released from rest. The radius of the disk is R-20 cm. See Fig. a. Starting with conservation of energy: ΔΚ. ar...
Part D (Rotational Dynamics and Oscillations) Problem D1: A disk-shaped pulley has mass M = 4kg and radius R = 0.5cm. It rotates free axis. A block of mass m = 2kg hangs by a string that is tightly wrapped ar the system starts from rest. Moment of inertia of a disk is I = 2 gs by a string that is tightly wrapped around the pulley. Assume m.it rotates freely on a horizontal M 1) What is the acceleration...
due in 30 min
8. (10 points) Picture taken from problem 19-21. The spool has a weight of 30 lb and a radius of gyration ko=0.45 ft. A cord is wrapped around the spool's inner hub and the end of the chord is subjected to a horizontal force P = 5 lb. Assume the spool rolls and slips. The coefficient of friction between the spool and the ground is uk = 0.1. Determine the spool's angular velocity in 4 s...
ip a 1.2 kg block is tied to a string that is wrapped around
the rim of a pulley of radius 7.1cm. the block is released from
rest. EXPLAIN
l, LhandlerSig Hide Timer Part A Assuming the pulley is a uniform disk with a mass of 0.31 kg, find the speed of th block after it has fallen through a height of 0.50 m Express your answer using two significant figures. 2 m/s Submit Submit Request Answer Part B 1033...
3. [15 points) The double pulley consists of two wheels which are attached to one another and turn at the same rate. The radii of the inner andouter pulleys are 0.1 m and 0.3 m respectively as shown. The pulley has a mass of 30 kg and a radius of gyration of ko = 0.2 m. The block A has a mass of 10 kg. A force F is applied to the rope wrapped around the inner hub of the...
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