A thin rod of mass M and length L has a fixed rotation axis a distance L/6 from one end. (a) Using the parallel-axis theorem, find the moment of inertia of the rod about its rotation axis. (b) Suppose the rod is held horizontally at rest and then released. Draw a free-body diagram of the rod at the moment of its release, and find its angular acceleration at this moment. (Remember that gravity acts at the rod’s center.) (c) Find the angular velocity of the rod as it swings through its vertical position. (Hint: The angular acceleration is not constant, so you cannot use kinematic equations, it has to be energy conservation. Because gravity acts at the rod’s center, the potential energy depends on the height of the rod’s center, not its end.)
A thin rod of mass M and length L has a fixed rotation axis a distance...
A long thin rod is held horizontally. When released, it pivots around a fixed, frictionless axis through one end. Consider its angular speed when it is vertical? a) The final speed depends on the rod’s mass only. b) The final speed depends on the rod’s length only. c) The final speed depends on both the rod’s mass and length. d) The final speed depends on neither the rod’s mass nor length.
(a) Knowing that the moment of inertia of a thin uniform metallic rod of mass m and length L about an axis through its center of mass is (1/12) ml?, what is its moment of inertial about a parallel axis through one of its ends (show your calculation). (b) A physical pendulum consisting of a thin metallic rod of mass m = 200.0 g and of length L = 1.000 m is suspended from the upper end by a frictionless...
A thin rigid rod of MM = 1.6 kg and L = 3.2 m rotates at the
angular speed ω = 5 rev/s around the rotation axis which is at d =
0.1 m from the center of the mass of the rod, as shown. Note that
ICM = ML^2/12 for a thin rod.
A. Calculate the moment of inertia I of the rod for the rotation
axis.
B. What is the rotational kinetic energy of the thin rod?
rotation...
A uniform thin rod of length 0.95 m and mass 1.2 kg lies in a horizontal plane and rotates in that plane about a pivot at one of its ends. The rod makes one rotation every 0.39 second and rotates clockwise as viewed from above its plane of rotation. A)Find the magnitude of the rod’s angular momentum about its rotation axis, in units of kgm^/s. b) find the rotational kinetic energy, in joules, of the rod described in part (a)....
A uniform rod of mass M = 5.14kg and length L = 1.01m can pivot
freely (i.e., we ignore friction) about a hinge attached to a wall,
as seen in the figure below.
The rod is held horizontally
and then released. At the moment of release, determine the angular
acceleration of the rod. Use units of rad/s^2.
Determine the linear acceleration of the tip of the rod. Assume
that the force of gravity acts at the center of mass of...
(a) Knowing that the moment of inertia of a thin uniform metallic rod of mass m and length L about an axis through its center of mass is (1/12) mL?. what is its moment of inertial about a parallel axis through one of its ends (show your calculation). (b) A physical pendulum consisting of a thin metallic rod of mass m = 200.0 g and of length L - 1.000 m is suspended from the upper end by a frictionless...
A thin uniform rod has a length of 0.550 m and is rotating in a circle on a frictionless table. The axis of rotation is perpendicular to the length of the rod at one end and is stationary. The rod has an angular velocity of 0.42 rad/s and a moment of inertia about the axis of 2.60x10-3 kg .m2 . A bug initially standing on the rod at the axis of rotation decides to crawl out to the other end...
A uniform thin rod of length L = 40.0 cm and mass M = 800 g is pinned so that it can swing about a point that is one-third of the way from one end of the rod. You pull the rod away from equilibrium by a small angle and release it, so that the rod swings back and forth. (a) What is the period of the rod’s motion as it swings back and forth? (b) What is the length...
1. A thin rod of length L and total mass M has a linear mass density that varies with position as λ(x)-γ?, where x = 0 is located at the left end of the rod and γ has dimensions M/L3. ĮNote: requires calculus] (a) Find γ in terms of the total mass M and the length L. (b) Calculate the moment of inertia of this rod about an axis through its left end, oriented perpen dicular to the rod; expressed...
14. A thin rod (mass lkg and length Im) with its rotation axis perpendicular to its length has a moment of incrtia of 1/12 ML2. Two forces are applied to the rod. The points of application and the directions of the forces are indicated in the diagram below. The orientations of the forces remain constant relative to the rod as the rod rotates and produce a constant torque on the rod. through its centre and Rotation axis (a) If the...