A 5 kg ball that has an equation for its rotational inertia of 0.5mr2 is initially at rest. The ball begins to accelerate at 6 rad/s2. The net torque on the ball is 80N. Calculate the radius of the ball.
Q: Yo-yo has a mass m, an inner radius r and an outer radius R. The rotational inertia of the yo-yo is…
A: Torque produced is the product of Rotational inertia and angular acceleration torque=Iα Torque is…
Q: A wind turbine is initially spinning at a constant angular speed. As the wind's strength gradually…
A: Given Data : The constant angular acceleration is given as α=0.178rads2. The Number of revolutions…
Q: During a very quick stop, a car decelerates at 6.4 m/s2. Assume the forward motion of the car…
A:
Q: A 10 kg ball with a 1.5-meter radius is initially at rest begins to roll and accelerate at a uniform…
A:
Q: A playground merry-go-round has a mass of 120 kg and a radius of 1.80 m and it is rotating with an…
A: It is given that,
Q: A 10 kg cylindrical barrel with a radius of 0.5 m rotates about a vertical axis of rotation without…
A:
Q: playground merry-go-round has a mass of 120 kg and a radius of 1.80 m and it is rotating with an…
A:
Q: A 10 kg cylindrical barrel with a radius of 0.5 m rotates about a vertical axis of rotation without…
A: Recall law of conservation of angular momentam. I1ω1=I2ω2
Q: A playground merry-go-round has a mass of 120 kg and a radius of 1.80 m and it is rotating with an…
A: Given Data:- Mass of the merry-go-round is M=120 kg Radius of the merry-go-round is R=1.80 m Initial…
Q: A torque of magnitude 50Nm acts for 10 seconds to start a small merry-go-round (I = 1/2*m*r^2 ) of…
A: Given data: Torque (τ) = 50 Nm Time (t) = 10 seconds Moment of inertia (I) = (1/2)mr2 Radius (r) =…
Q: A playground merry-go-round has a mass of 136 kg and a radius of 1.60 m and it is rotating with an…
A: Given:- Mass of the merry-go-round M=136 kg. Radius of the merry-go-round R=1.60 m. Initial angular…
Q: A spinning wheel steadily slows from an initial angular velocity of 1.95 rev/s to 0.495 rev/s in…
A: Given data: Initial angular velocity (ω0) = 1.95 rev/s Final angular velocity (ω) = 0.495 rev/s Time…
Q: A rigid CD of radius 5 cm starts at rest. After 50 complete revolutions, the linear speed of the…
A:
Q: A wind turbine is initially spinning at a constant angular speed. As the wind's strength gradually…
A: α ( angular acceleration) = -0.180 rad/sec2Number of revolution (N) = 2870 Angular displacement (θ)…
Q: A deep-sea fisherman hooks a big fish that swims away from the boat pulling the fishing line from…
A:
Q: A car starts from rest and accelerates uniformly with no slipping between the tires and road. If one…
A: The wheel has an angular acceleration…
Q: A door handle (not a knob) is 0.4 meters long. A person applies 20N of force at 0.2 meters away from…
A: The magnitude of torque is given by Where F = force applied, r = distance from the axis of…
Q: A child of mass 54.3 kg sits on the edge of a merry-go-round with radius 2.2 m and mo- ment of…
A:
Q: A gyroscope has a 0.9 kg disk that spins around its axis of symmetry at 32 rev/s. The center of mass…
A: According to question--- Given that--- mass = 0.9 kg. Angular frequency = 32 rev /sec. R = 18 cm.…
Q: The 19-cm diameter disk in can rotate on an axle through its center. 30 N 45° 5 cm 5 cm 20 N X 30 N…
A:
Q: A 4 kg ball with a 0.45-meter radius is initially at rest begins to roll and accelerate at a uniform…
A:
Q: A car tire with a 30 in. diameter rotates at 700 revolutions per minute. The brakes are hit until…
A:
Q: A 50 kg solid disk (I = ½ mr2) with a radius of r starts from rest and rotates about an axis through…
A: Given: Mass of disk, M=50 kg Angular speed of disk, ω=16 rad/s Radius of disk, r=3.5 m Angular…
Q: A baseball pitcher brings his arm forward during a pitch, rotating the forearm about the elbow. If…
A:
Q: wind turbine is initially spinning at a constant angular speed. As the wind's strength gradually…
A:
Q: A disk with moment of inertia 7.3 kg m^2 spins at 19 rad/s about its center axis. If a brake exerts…
A: Given : Moment of inertia, I = 7.3 kg m2 Angular velocity, ω = 19 rad/s Force, F = 80 N…
Q: A 60 kg skater begins a spin with an angular speed of 6.0 rad/s. By changing the position of her…
A: Given, mass of the skater, m = 60 kg angular speed of the skater, ωo = 6.0 rads moment of inertia of…
Q: An object's moment of inertia is 2.5 kg⋅m2 . Its angular velocity is increasing at the rate of 3.4…
A: Given data: Moment of inertia (I) = 2.5 kg.m2 Angular acceleration (α) = 3.4 rad/s2 Required: The…
Q: An object's moment of inertia is 1.9 kg⋅m^2 . Its angular velocity is increasing at the rate of 3.3…
A: Given that the value of moment of inertia of object and rate of increase of angular velocity. Then…
Q: A 3000-kg Ferris wheel accelerates from rest to an angular speed of 0.21 rad/s 11 s . Approximate…
A: Introduction: One of the famous among the kids is to experience the Ferris wheel ride. Ferris wheel…
Q: A playground merry-go-round with a mass of 145 kg and a radius of 1.9 m is rotating with a frequency…
A: mass of merry go round = 145 kg radius = 1.9 m angular velocity = 0.56 rev/sec mass of child = 24 kg…
Q: During a very quick stop, a car decelerates at 6.6 m/s2. Assume the forward motion of the car…
A: Given at = 6.6 m/s2r = 0.27 mω0 = 99 rad/s
Q: A child of mass 32.6 kg rides a broken 13.0-kg merry-go-round in the shape of a hoop of radius 4.12…
A:
Q: A 1.5 kg ball and a 2.0 kg ball are connected by a 2.5-m-long rigid, massless rod. The rod and balls…
A:
Q: A softball pitcher's arm spins with an angular velocity of 30 rad/s at release of the ball. The…
A: The angular velocity of the ball ω=30 rad/s. The length of the pitcher's arm from the axis of…
Q: road surface
A:
Q: A child is outside his home playing with a metal hoop and stick. He uses the stick to keep the hoop…
A: Given that: The radius of the hoop is r=45 cm The initial velocity is u=0. The final velocity is…
Q: The tires of a car make N revolutions as the car reduces its linear speed uniformly from initial…
A: This is a question from the rotational dynamics. To solve this question, we will use the relation…
Q: You start riding a moped, the wheels begin at rest and have an angular acceleration of 3.5…
A:
Q: Starting from rest, a wheel reaches an angular speed of 10.5 rad/s in 5.70 s. (a) What is the…
A: αis the symbol of magnitude of angular acceleration and its unit is rad/s2. For a constant axis,…
Q: A dentist's drill starts from rest. After 4.30 s of constant angular acceleration it turns at a rate…
A: Given data The initial angular velocity of the ωo=0 rad/s The time is t=4.30 s The final angular…
Q: A playground merry-go-round has a mass of 100 kg and a radius of 1.80 m and it is rotating with an…
A: Mass of the merry-go-round, Radius of the merry-go-round, Initial angular velocity, Mass of the…
Q: An object that is initially at rest undergoes an angular acceleration of 1.62 rad/s2. What is the…
A:
Q: A spherical shell with a mass of 1.43 kg and a radius of 0.39 m is rolling across the level ground…
A: We know that, The angular speed ω of a rotational object which is moving with initial angular speed…
Q: A horizontal platform in the shape of a circular disk rotates on a frictionless bearing about a…
A:
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
