In a canyon between two mountains, a spherical boulder with a radius of 1.4m is just set in motion by a force of 1600N. The force is applied at an angle of 53.3° measured with respect to the radius of the boulder. What is the magnitude of the torque on the boulder?
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- In figure forces F1 and F2 have magnitudes 20N and 15N respectively and act on a disk nailed at point P as shown. a) What torque (magnitude and direction) does each of these forces exert on the disk about point P? b) What is the net torque exerted? y 60° m 45° X 6 mTo loosen a pipe fitting, a plumber slips a piece of scrap pipe (a "cheater") over his wrench handle. He stands on the end of the cheater, applying his 900 N weight at a point 0.80 m from the center of the fitting. The wrench handle and cheater make an angle of 19° with the horizontal. Find the magnitude and direction of the torque he applies about the center of the fitting. (680 Nm) F-900NText Predictions: On e to search w S 4. Rank the torques in order from largest to smallest: A: mass mo, radius ro B: mass 2mo, radius ro 2Fo Fo Accessibility: Investigate 5 X alt E D || C R F 1 T JL G 6 B H C: mass mo, radius 2ro 7 hp 8 U J N A Fo M D: mass 2mo, radius 2ro fio ( JO O K > O L 2Fo Focus AA CO 441 + = 4- { PUOL Р 46 alt 80°F insert ? 8:40 AM 6/14/202 prt sc backace
- A circular-shaped object of mass 9 kg has an inner radius of 7 cm and an outer radius of 28 cm. Three forces (acting perpendicular to the axis of rotation) of magnitudes 13 N, 22 N, and 13 N act on the object, as shown. The force of magnitude 22 N acts 33◦ below the horizontal. Find the magnitude of the net torque (units Nm) on the wheel about the axle through the center of the object.A 7.2-kg ball is tied to the end of a string. The ball is then swung at a constant angular velocity of 14 rad/s in a horizontal circle of radius 2.2 m. What is the torque on the stone?Three children are riding on the edge of a merry-go-round that has a mass of 105 kg and a radius of 1.50 m. The merry-go-round is spinning at 18.0 rpm. The children have masses of 22.0, 28.0, and 33.0 kg. If the 28.0 kg child moves to the center of the merry-go-round, what is the new angular velocity in revolutions per minute? Ignore friction, and assume that the merry-go-round can be treated as a solid disk and the children as point masses. Question Credit: OpenStax College Physics 19.5 final angular velocity: rpm Incorrect
- A 0.71-m-diameter solid sphere can be rotated about an axis through its center by a torque of 12.8 m∗N which accelerates it uniformly from rest through a total of 170 revolutions in 15.0 s. What is the mass of the sphere? Express your answer to two significant figures and include the appropriate units.What is the value of x?A wrench 0.8 meters long lies along the positive y-axis, and grips a bolt at the origin. A force is applied in the direction of (0,-1,-3) at the end of the wrench. Find the magnitude of the force in newtons needed to supply 100 newton-meters of torque to the bolt. Force: newtons
- On a playground, there is a merry-go-round. In order to get it moving, Bonnie applies a force of 17 N. The merry-go-round measures 5.3 m from the axis of rotation to the edge where Bonnie applies her force. Assuming she applies her force perpendicularly to a line drawn from the axis of rotation, what is the magnitude of the torque t Bonnie imparts to the merry-go-round? T = N.mA force F⃗ =7i^+2.7k^ N is applied at the point (3,0,1) m. What is the y component of the torque?A car is traveling at a constant speed on the highway. It’s tires have a diameter of 66.0 cm and are rolling without sliding and slipping. If the angular speed of the tires is 50.0 rad/s, what is the speed of the car?