A wheel rolls 5 revolutions on a horizontal surface without slipping. If the center of the wheel moves 3.2 m, what is the radius of the wheel?
Answer to relevant QuestionsIf the cord attached to the vertical wall in Fig. 8.44 were horizontal (instead of at a angle), what would the tensions in the cords be? What net torque is required to give a uniform 20-kg solid ball with a radius of 0.20 m an angular acceleration of 20 rad/s2? For the system shown in Fig. 8.48, m1 = 8.0 kg, m2 = 3.0 kg, θ = 30o, and the radius and mass of the pulley are 0.10 m and 0.10 kg, respectively. (a) What is the acceleration of the masses? (Neglect friction and the ...In Fig. 8.23, a mass m descends a vertical distance from rest. (Neglect friction and the mass of the string.) (a) From the conservation of mechanical energy, will the linear speed of the descending mass be (1) greater than, ...A hoop starts from rest at a height 1.2 m above the base of an inclined plane and rolls down under the influence of gravity. What is the linear speed of the hoop’s center of mass just as the hoop leaves the incline and ...
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