Peg P is driven by the fork link OA along the curved path described by r = (20) ft. At the instant 0 = 7/4 rad, the angular velocity and angular acceleration of the link are 0 = 3.1 rad/s and 0 = 0.90 rad/s?. (Eigure 1) Part A Determine the magnitude of the peg's acceleration at this instant. Express your answer to three significant figures and include the appropriate units. a = Value Units Submit Request Answer Figure < 1 of 1 Provide Feedback
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- A diver (such as the one shown in the figure(Figure 1)) can reduce her moment of inertia by a factor of about 3.5 when changing from the straight position to the tuck position. Figure 1 of 1 Part A If she makes 2.0 rotations in 1.1 s when in the tuck position, what is her angular speed (rev/s) when in the straight position? Express your answer using three significant figures. Submit VE ΑΣΦ Provide Feedback Request Answer ? rev/s Next >A torque of 60 N•m producing a counterclockwise rotation is applied to a wheel about its axle. A frictional torque of10 N•m acts at the axle.a. What is the net torque about the axle of the wheel?b. If the wheel is observed to accelerate at the rate of 2 rad/s under the influence of these torques, what is the rotational inertia of the wheel? Use the right formula to solve and get the correct answerI Review I Constants You are designing a rotating metal flywheel that will be used to store energy. The flywheel is to be a uniform disk with radius 35.0 cm. Starting from rest at t = 0, the flywheel rotates with constant angular acceleration 3.00 rad/s? about an axis perpendicular to the flywheel at its center. Part A If the flywheel has a density (mass per unit volume) of 8600 kg/m³, what thickness must it have to store 800 J of kinetic energy at t = 8.00 s? Express your answer with the appropriate units. HA h = Value Units Submit Request Answer
- During a 5.1 s time interval, a flywheel with a constant angular acceleration turns through 451 radians and acquires an angular velocity of 136 rad/s. (Assume the flywheel is rotating in the positive direction. Indicate the direction with the signs of your answers.) A.)What is the angular velocity (in rad/s) at the beginning of the 5.1 s? B.)What is the angular acceleration of the flywheel (in rad/s2)?Refer to the question below.consider the figure above. consider the small block (M). let say that this inverted cone is rotating vertically or a vertical axis. lets say that the angular speed of this is Vtangential = = r*@ coefficient static friction (block and xone) = Hs. LETS SAY we need to remain this block at its height while spinning (radius of revolution = h*tan theta), FIND: a. Max value of b. min value of
- A solid cylinder of radius 13.0 cm rolls down an incline with slipping. The angle of the incline is 25°. The coefficient of kinetic friction on the surface is 0.451. What is the angular acceleration (in rad/s2) of the solid cylinder? (Enter the magnitude.) rad/s² What is the linear acceleration (in m/s2)? (Assume v> ar. Enter the magnitude.) m/s²Refer to the picture below.Crank OA is rotating at a counterclockwise angular rate of 9.4 rad/s, and this rate is decreasing at 4.3 rad/s². Determine the angular acceleration AB of link AB for the position shown. The angular acceleration AB is positive if counterclockwise, negative if clockwise. 100 mm 9.4 rad/s 85 mm Answer: CAB= 38° G AB=210 mm B rad/s²
- A solid cylindrical pulley with a mass of 1.60 kg and a radius of 0.290 m is free to rotate about its axis. An object of mass 0.270 kg is attached to the pulley with a light string (the figure below). Assume the string does not stretch or slip. "Calculate the tension in the string. (Express your answer to three significant figures.) Submit N Calculate the angular acceleration of the pulley. (Express your answer to three significant figures.) rad/s² Submit fA flywheel whose moment of inertia /= 200 lb-ft2 is spinning at 180 RPM. For a flywheel, KE = Iw2/2, where w is the angular velocity, rad/s. Let g = 32.2 ft/s². Step 1 How high above the surface of the earth, in ft, would a 60 lb mass have to be raised to have its potential energy equal to the kinetic energy of the flywheel? h = i ftThe spool has a mass of 70 kg and a radius of gyration of KG 0.3 m. (Figure 1) Show Transcribed Text α = = 250 mm Show Transcribed Text HA Templates Value If the coefficients of static and kinetic friction at A are μs = 0.2 and μ = 0.15, respectively, determine the angular acceleration of the spool if P = 60 N. Express your answer to three significant figures and include the appropriate units. A Units 400 mm ? P