2. The wheel on a grinder is a homogeneous 1 kg disk with a 10 cm radius, It coasts uniformly from 1200 rpm in a time of 30s. How large a frictional torque slows its motion? (Moment of inertia of a disk is MR?)|
Q: The angular speed of an automobile engine is increased at a constant rate from 1,200 rev/min to 3000…
A: The angular speed of an automobile engine is increased at a constant rate from 1,200 rev/min to 3000…
Q: Consider a basketball at the top of a ramp. As the ball (radius= 0.235 m) rolls down the ramp, it…
A: Radius of the object is Height of the ramp is Speed of object at the bottom is Note:Gravitational…
Q: 1. A wheel has a radius of 4.1-m. What distance across the flat ground will the wheel travel if is…
A:
Q: 6. A circular pulley of radius 0.35 [m] can rotate on frictionless bearing. A massless string passes…
A:
Q: Figure (a) shows a disk that can rotate about an axis at a radial distance h from the center of the…
A:
Q: B 1m \1m 60° 60° 1m axis 1m 2m The wire has 5 segments each 1m and can rotate around the axis sho 1m
A:
Q: A car initially traveling at 33.1 m/s undergoes a constant negative acceleration of magnitude 1.70…
A: The initial velocity of the car u = 33.1 m/s Acceleration of the car a = - 1.70 m/s2 Radius of the…
Q: The angular displacement of the centrifuge is given by 0 = 3.6[t + 28e 0.016t - 28] rad, where t is…
A:
Q: 2) Wheel O rolls in a gear mechanism without slip along circle e. The mechanism is driven with a…
A:
Q: A certain wheel has a rotational inertia of 14 kg. m² . As it turns through 10 rev its angular…
A: Given data: Moment of inertia (I) = 14 kg.m2 Angular displacement (Δθ) = 10 rev Initial angular…
Q: A wheel starts from rest to an angle of zero, and has a constant angular acceleration for 5.0 s that…
A: Given, The initial angular velocity is ωi=0 angular acceleration is α time for constant acceleration…
Q: The movement of an oscillating flywheel is defined by the following relationship: 0 = 8o e7nt/6 sen…
A: Given: Moment of oscillating fly wheel is given by θ=θ0e7πt/6sin(4πt) where, θ is expressed in…
Q: An bullet of mass m = 10.00 g is fired into a block of mass M = 275 g that is initially at…
A: Given data m=0.01 kgM=0.275 kgh=2 md=3.5 m
Q: O Macmillan Learning An optical disk drive in your computer can spin a disk up to 10,000 rpm (about…
A:
Q: A figure skater can increase her spin rotation rate from 28 rpm to 190 rpm. Given that her initial…
A: Given: Initial rate of rotation ω1= 28 rpm Final rotation ω2=190 rpm The initial moment of inertia…
Q: A car initially traveling at 26.2 m/s undergoes a constant negative acceleration of magnitude 1.80…
A: Given data The initial velocity of the car is v=26.2 m/s The accleration is, a=-1.80 m/s2 The radius…
Q: An ultracentrifuge accelerates from rest to 100,000 rpm in 3.50 min. (a) What is its angular…
A:
Q: Calculate the linear acceleration of a car, the 0.260-m radius tires of which have an angular…
A: Given data: Radius (r) = 0.260 m Angular acceleration (α) = 12.0 rad/s2 Time (t) = 2.50 s Initial…
Q: (a) Calculate the linear acceleration (in m/s2) of a car, the 0.290 m radius tires of which have an…
A: Radius of the tire, r=0.290m Angular acceleration, α=11.0rad/s2 Time, t=2.50s Initial velocity,…
Q: A cyclist starts from rest and pedals such that the wheels of his bike have a constant angular…
A:
Q: 9, A smooth can C, having a mass of 3 kg, is lifted from a feed at A to a ramp at B by a rotating…
A: Mass of the can C=3 Kg The centripetal acceleration is given as ac=v2r=ω2 r ω=angular speed of the…
Q: An automobile engine slows down from 3800 rpmrpm to 1400 rpmrpm in 2.0 s A)Calculate its angular…
A:
Q: Suppose a teenager puts her bicycle on its back and starts the rear wheel spinning from rest to a…
A: The required expression for the angular acceleration is,
Q: A figure skater can increase her spin rotation rate from 20 rpm to 175 rpm. Given that her initial…
A:
Q: A rotating wheel moving in a clockwise direction requires 3 sec to rotate 37 revolutions. It's…
A:
Q: e linear acceleration of a car, the 0.310-m radius tires of which have an angular acceleration of…
A:
Q: A car accelerates uniformly from rest for 10s, when its velocity is v = 10ms-. Assuming that the…
A:
Q: A pulley accelerates from 75.00 rev/min to 150 rev/min in 3 minutes. Calculate the magnitude of the…
A: From the rotational kinematics equations: Here, ωf, ωi, α and t represent the final angular…
Q: A wheel witha radius 0.54 rolls across the level ground, initially moving forward with a speed of…
A:
Q: The largest tire ever made had a radius of 2.75 m. Suppose this tire underwent a linear acceleration…
A: The equation for the angular acceleration is given by, α=ar Here, a is the linear acceleration and r…
Q: Consider the rotational kinematic motion profile indicated below. t: 0 → 5s = 0 deg/s , R = 6 deg/s…
A: Given: The rotational kinematic motion profile; t:0→5 sP=6 deg/s , Q=0 deg/s , R=0 deg/sΦ(0)= 0 deg…
Q: a) Calculate the linear acceleration of a car, the 0.310-m radius tires of which have an angular…
A:
Q: A cyclist starts from rest and pedals such that the wheels of his bike have a constant angular…
A: 1) A cyclist starts from rest 2) Angular displacement of wheels: θ = 99 rev = 99 × 2π rad 3) Time…
Q: You are riding your bicycle down the road and decide to stop to take in the scenery. Initially, your…
A: given:
Q: A disc-shaped grindstone of mass 3.0 kg and radius 8.0 cm is spinning at 600 revolutions/min. The…
A:
Q: A cyclist starts from rest and pedals such that the wheels of his bike have a constant angular…
A: 1) A cyclist starts from rest 2) Angular displacement of wheels: 86 revs = 86× 2π rad 3) Time taken…
Q: During a certain time interval, the angular position of a rotating disk is described by 0=20-1+3r If…
A: Angular motion of a disk is described by the equation : θ(t) = 20-t+3t3 radω(t) = d[θ(t)]dt (Angular…
Q: A disk spins counter-clockwise at 25.6 rad/s. Due to friction, it slows down at a constant rate.…
A:
Q: A car initially traveling at 26.2 m/s undergoes a constant negative acceleration of magnitude 1.80…
A:
Q: 30H z. You apply a 5N force A heavy wheel (hoop) (10kg and R = perpendicular to the edge of the…
A: The magnitude of torque acting is given by the product of force and the perpendicular distance…
Q: 3. A typical hard disk in a desktop computer is a uniformly solid, 400 gram disk 3.5 inches in…
A:
Q: An automobile engine slows down from 2500 rpm to 1200 rpm in 2.5 s. Calculate its average angular…
A: Converting initial angular velocity: ω1 = 2500 rpm ω1 = (2500 rpm) * (2π rad/1 revolution) * (1…
Q: The angular position of a polnt on the rim of a rotating wheel is given as a function of time: e(t)…
A: θ(t) = 3t2 + 5
Q: A circular disk has a rotational inertia of 1.4 kg.m? and a constant angular acceleration of 4.4…
A: Given : Rotational inertia of circular disk, I = 1.4 kgm2 Angular acceleration, α = 4.4…
Step by step
Solved in 2 steps with 2 images
