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Fundamentals of Physics Study Set 2

Physics & Astronomy

Quiz 11 :

Rolling, Torque, and Angular Momentum

Quiz 11 :

Rolling, Torque, and Angular Momentum

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A 5.0-kg ball rolls without sliding from rest down an inclined plane.A 4.0-kg block, mounted on roller bearings totaling 100 g, rolls from rest down the same plane.At the bottom, the block has:
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A

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When the speed of a rear-drive car is increasing on a horizontal road the direction of the frictional force on the tires is:
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D

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A hoop (I = MR2)of mass 2.0 kg and radius 0.50 m is rolling at a center-of-mass speed of 15 m/s.An external force does 750 J of work on the hoop.What is the new speed of the center of mass of the hoop?
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C

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A solid sphere starts from rest and rolls down a slope that is 5.1 m long.If its speed at the bottom of the slope is 4.3 m/s, what is the angle of the slope?
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The coefficient of static friction between a certain cylinder and a horizontal floor is 0.40.If the rotational inertia of the cylinder about its symmetry axis is given by I = (1/2)MR2, then the maximum acceleration the cylinder can have without sliding is:
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Two identical disks, with rotational inertia I (= 1/2 MR2), roll without slipping across a horizontal floor and then up inclines.Disk A rolls up its incline without sliding.On the other hand, disk B rolls up a frictionless incline.Otherwise the inclines are identical.Disk A reaches a height 12 cm above the floor before rolling down again.Disk B reaches a height above the floor of:
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A cylinder of radius R = 6.0 cm is on a rough horizontal surface.The coefficient of kinetic friction between the cylinder and the surface is 0.30 and the rotational inertia for rotation about the axis is given by MR2/2, where M is its mass.Initially it is not rotating but its center of mass has a speed of 7.0 m/s.After 2.0 s the speed of its center of mass and its angular velocity about its center of mass, respectively, are:
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A wheel of radius 0.5 m rolls without sliding on a horizontal surface as shown.Starting from rest, the wheel moves with constant angular acceleration 6 rad/s2.The distance in traveled by the center of the wheel from t = 0 to t = 3 s is: img
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A thin-walled hollow tube rolls without sliding along the floor.The ratio of its translational kinetic energy to its rotational kinetic energy (about an axis through its center of mass)is:
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A hoop, a uniform disk, and a uniform sphere, all with the same mass and outer radius, start with the same speed and roll without sliding up identical inclines.Rank the objects according to how high they go, least to greatest.
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When we apply the energy conversation principle to a cylinder rolling down an incline without sliding, we exclude the work done by friction because:
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Two uniform cylinders have different masses and different rotational inertias.They simultaneously start from rest at the top of an inclined plane and roll without sliding down the plane.The cylinder that gets to the bottom first is:
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Two wheels roll side-by-side without sliding, at the same speed.The radius of wheel 2 is twice the radius of wheel 1.The angular velocity of wheel 2 is:
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When a wheel rolls without slipping,
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A yo-yo, arranged as shown, rests on a frictionless surface.When a force is applied to the string as shown, the yo-yo: img
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Which of the following is a vector quantity?
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A solid wheel with mass M, radius R, and rotational inertia MR2/2, rolls without sliding on a horizontal surface.A horizontal force F is applied to the axle and the center of mass has an acceleration a.The magnitudes of the applied force F and the frictional force f of the surface, respectively, are:
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A solid sphere and a solid cylinder of equal mass and radius are simultaneously released from rest on the same inclined plane sliding down the incline.Then:
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A hoop rolls with constant velocity and without sliding along level ground.Its rotational kinetic energy is:
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A forward force acting on the axle accelerates a rolling wheel on a horizontal surface.If the wheel does not slide the frictional force of the surface on the wheel is:
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Showing 1 - 20 of 65