Calculate the rotational kinetic energy in the motorcycle wheel if its angular velocity is 120 rad/s. Assume m-11.5 kg, R₁-0.28 m, and R₂ -0.31 m. Moment of inertia for the wheel I- KE unit unit
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- An object of mass 1.5 kg does rotational motion. Its angular velocity is 30 rpm and the radius of circular path is 2 m. Find kinetic energy of the object. a) 4.71 J b) 2700 J c) 29.6 JCalculate the rotational inertia of a meter stick, with mass 0.677 kg, about an axis perpendicular to the stick and located at the 33.8 cm mark. (Treat the stick as a thin rod.) Number i UnitsThe flywheel of a steam engine runs with a constant angular speed of 132 rev/min. When steam is shut off, the friction of the bearings and the air brings the wheel to rest in 2.5 h. What is the magnitude of the constant angular acceleration of the wheel in rev/min2? Do not enter the units. 8.80x10-1 You are correct. Your receipt no. is 161-6726 Previous Tries How many rotations does the wheel make before coming to rest? 9.90x103 You are correct. Your receipt no. is 161-5241 Previous Tries What is the magnitude of the tangential component of the linear acceleration of a particle that is located at a distance of 50 cm from the axis of rotation when the flywheel is turning at 66.0 rev/min? 6.14 10^-4 m/s^2 Submit Answer Incorrect. Tries 8/40 Previous Tries What is the magnitude of the net linear acceleration of the particle in the above question? Submit Answer Tries 0/40
- A diver goes into a somersault during a dive by tucking her limbs. If her rotational kinetic energy is 102 J and her moment of inertia in the tuck is 8.3 kg-m², what is her rate of rotation during the somersault? W = 4.95 rad/s Express your answer here in rev/s: Wrev = rev/s Question Help: Readhelp pls asap not in scientific notation plsCalculate the rotational inertia of a wheel that has a kinetic energy of 46.4 kJ when rotating at 267 rev/min. Number i Units
- 3 Geodynamo The mass of the earth is M = 6.0 x 1024 kg and its radius is R = 6.4 x 10° m. (a) Estimate the rotational kinetic energy of the earth, in joules (J). (b) The world's annual power consumption is about 20 TWh. If the earth's rotational kinetic energy could be converted to electrical power, how long could it supply energy to the human race, assuming our power consumption remained constant? Report your answer in seconds and in years.Calculate the rotational inertia of a wheel that has a kinetic energy of 44.1 kJ when rotating at 350 rev/min. Number i UnitsA uniform solid sphere, of radius R = 1.0 m and mass M = 5.0 kg, rotates freely with a constant angular speed o = 2.0 rad/s about a vertical axis tangent to the surface of the sphere, as shown in Figure . Find the rotational kinetic energy of the sphere. A) 14 J В) 10 J C) 22 J D) 28 J E) 36 J SIxe
- Two wheels are connected by a belt that does not slip. The smaller wheel has a diameter D, while the bigger wheel has a diameter that is 4.00 times bigger. Calculate the ratio of the moments of inertia if the two wheels have: i) the same angular momentum about their rotation axes. ii) the same rotational kinetic energy.QUESTION 11 A solid sphere having a mass of m = 4kg and a radius of R = 0.2m is rolling without slipping. It passes point O with a linear speed of vi = 4 m/s. Find the maximum height, max. the sphere can roll up on the 37° incline before coming to rest. Icm = 2/5 mR². 37 0 OA 4.1 m B. 2.8m OC0.5m OD. 1.14m Click Save and Submit to save and submit. Click Save All Answers to save all answers. SaThe moment of inertia of an object about a certain axis is 1.2 kg-m2. Initially the object is at rest, and then it is accelerated at a constant rate of 25 rad-s-2. Determine the time required for the object to achieve a rotational kinetic energy of 1.50 kJ.