A person sitting firmly over a rotating stool has his arms stretched. If he folds his arms, his angular momentum about the axis of rotation (a) increases (c) remains unchanged (b) decreases (d) doubles.
Q: Two wheels A and B in the figure are connected by a belt that does not slip. The radius of B is 2.82…
A:
Q: Two disks are rotating about the same axis. Disk A has a moment of inertia of 4.40 kg.m and an…
A:
Q: a) By modelling the ballerina with her arms and legs tucked in as a uniform eylinder of mass 60kg…
A: Given angular speed when arms and legs outstretched ωο=6π rad/s when arms and legs in ωi=10π rad/s…
Q: Two wheels A and B in the figure are connected by a belt that does not slip. The radius of B is 5.70…
A: Given, The radius of A = rA , The radius of B = rB Radius of B is 5.70 times radius of A, i.e, rB =…
Q: Figure gives the torque (7) that acts on an initially stationary disk that can rotate about its…
A: Given: t=20sec.we know that Torque, τ→=dL→dt ∀ L=Angular momentum or…
Q: A figure skater is spinning with an angular velocity of +17.5 rad/s. She then comes to a stop over a…
A:
Q: A particle of mass 0.350 kg is attached to the 100-cm mark of a meterstick of mass 0.175 kg. The…
A:
Q: A force is applied to the rim of a disk that can rotate like a merry-go-round, so as to change its…
A:
Q: The angular momentum of a flywheel having a rotational inertia of 2.4 kg-m² about its central axis…
A:
Q: Two wheels A and B in the figure are connected by a belt that does not slip. The radius of B is 6.87…
A: The radius of "B" rB is 6.87 times than the radius of "A" rA
Q: Suppose a child gets off a rotating merry-go-round. Does the angular velocity of the merry-go-round…
A:
Q: Every summer, your family goes to Callaway Gardens to see the acrobats in the Flying High Circus.…
A: Conservation of angular momentum: The angular momentum of a system is conserved if there is no net…
Q: A particle of mass 0.350 kg is attached to the 100-cm mark of a meterstick of mass 0.175 kg. The…
A: The mass of the particle, m1 is 0.350 kg. The mass of the meterstick, m2 is 0.175 kg. The length of…
Q: Two wheels A and B in the figure are connected by a belt that does not slip. The radius of B is 4.81…
A:
Q: (a)Calculate the angular momentum (in kg·m2/s) of an ice skater spinning at 6.00 rev/s given his…
A:
Q: A mouse is initially at rest on a horizontal turntable mounted on a frictionless, vertical axle. As…
A:
Q: The figure gives the torque r that acts on an initially stationary disk that can rotate about its…
A: Given Initial angular speed ωi=0 rad/s Initial angular momentum Li=0
Q: Two wheels A and B in the figure are connected by a belt that does not slip. The radius of B is 7.54…
A: CONCEPT: we know, Angular momentum L=Iω and Rotational kinetic energy =12Iω2 Where,…
Q: A man is sitting on a spinning stool with his arms folded and holding weights. What happens to his…
A: When the man extends his arms and the weights outward while sitting on a spinning stool, his angular…
Q: A stationary horizontal disc is free to rotate about its axis. When a torque is applied on it, its…
A: Given, kinetic energy=kθ2 We are aware that a spinning body's kinetic energy is, =12Iω2
Q: e angular momentum of a flywheel having a rotational inertia of 391kg•m2 about its central axis…
A:
Q: The angular momentum of a flywheel having a rotational inertia of 0.983 kg-m² about its central axis…
A:
Q: The angular momentum of a flywheel having a rotational inertia of 0.445 kg-m? about its central axis…
A:
Q: Chapter 11, Problem 041 GO The figure shows a rigid structure consisting of a circular hoop of…
A: Given that, The period of rotation of the hoop, t = 1.4 s R = 0.2 m and m = 4.1 kg We need to find…
Q: 21. A ball having mass m is fas- tened at the end of a flagpole т that is connected to the side of a…
A: Given,Mass of the ball = mLength of the flagpole = lAngle made by the flagpole with the horizontal…
Q: Two wheels A and B in the figure are connected by a belt that does not slip. The radius of B is 4.84…
A:
Q: While punting a football, a kicker rotates his leg about the hip joint. The moment of inertia of the…
A: Given data: Moment of inertia (I) = 3.49 kg.m2 Rotational kinetic energy (KER) = 167 J Distance of…
Q: A 9.81 kg particle with velocity = (1.75 m/s )î – (9.01 m/s )j is at x = 2.77 m, y = 6.88 m. It is…
A: Given data- mass of particle m=9.81 kg velocity v→=1.75 m/si^-9.01 m/sj^ position vector r→=2.77…
Q: A physics teacher on a spinning chair has a moment of inertia of 5.5 kg m^2 with his arms…
A:
Q: Suppose an ice skater is spinning at an angular speed 20 rad/s with her arms stretched out. She then…
A:
Q: ventilation fan with a moment of inertia of 9.4 kg-m^2 has a net torque of 7.1 N-m applied to it If…
A:
Q: (a) Calculate the angular momentum (in kg·m2/s) of an ice skater spinning at 6.00 rev/s given his…
A: a)Angular momentum = moment of inertia * angular speed = 0.35 * (6 * 2π) = 13.2 kg m2 /sb)Using…
Q: A 7.62 kg particle with velocity = (9.74 m/s )î - (2.04 m/s ) Ĵ is at x = 3.16 m, y = 9.00 m. It is…
A:
Q: A 1.00 kg particle with velocity = (4.28 m/s )i-(7.79 m/s )jis atx-8.75 m, y-3.55 m. It is pulled by…
A:
Q: a) Calculate the angular momentum of an ice skater spinning at 6.00 rev/s given his moment of…
A: a. the angular momentum of an ice skater is
Q: Two wheels A and B in the figure are connected by a belt that does not slip. The radius of B is 5.68…
A: Given Radius of B is 5.68 times the radius of A. Let radius of A is rA and radius of B is rB. Now…
Q: A metal hoop lies on a horizontal table, free to rotate about a fixed vertical axis through its…
A: Given: The magnitude of the torque is 1.75x10-2 N.m. The time interval is 3 s.
Q: At one instant, force: F = 5.14j N acts on a 0.297 kg object that has position vector T = (5.10i –…
A: S.I unit of Angular momentum is kg.m2.s-1 S.I unit of Torque is Nm Here we directly use vector…
Q: The position of an object of mass 2.00 kg with respect to some origin is given as r = (6.00i +…
A: Given thatr→=6 i^+5t j^m=2 kgformula of angular momentum isL→=r→×mv→
Q: (a) Calculate the angular momentum of an ice skater spinning at 6.00 rev/s given his moment of…
A: a) The expression used to calculate angular momentum of an ice skater is L=Iω Substitute values in…
Q: The photo shows a high-wire walker striding confidently along a steel cable stretched nearly half a…
A: The given values are, Mbody=88 kgLbody=1.8 mMpole=20 kgLpole=9.1 m
Step by step
Solved in 2 steps
