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3. A horse on a carousel is 4.0m from the axis of rotation. (a) If the...
Review Constants Periodic Table The horse on a carousel is 3.7 m from the central axis...
Review Constants Periodic Table The horse on a carousel is 3.7 m from the central axis Part A if the carousel rotates at 0.14 rev/s, how long does it take the horse to go around twice? Express your ansver in seconds. 90 ΑΣ ? S Submit Request Answer Part B How fast is a child on the horse going (in m/s)? Express your answer in meters per second. ΟΙ ΑΣφ ? V= m/s Submit Request Answer
A merry go round (a disk I=1/2MR^2, M=200 kg, R=2 m) rotates at 0.4 rad/s. A...
A merry go round (a disk I=1/2MR^2, M=200 kg, R=2 m) rotates at 0.4 rad/s. A child with a mass of 60 kg is dropped onto the merry go round at a distance of 1.5 m from the axis of rotation. How fast is the child moving after it comes to turn with the merry go round? A) 0.16 m/s B) 0.30 m/s C) 0.45 m/s D) 0.66 m/s
1. A rotating top has a scratch 0.05 m from the vertical axis of rotation. It...
1. A rotating top has a scratch 0.05 m from the vertical axis of rotation. It does 3 revolutions in 5 seconds. The angular velocity of the top is rad / s. The tangential velocity of the scratch is m / s. Give your answers to two decimal places. 2. A skater is spinning at 2 rev / s. She increases her angular velocity in 7 seconds until it is 8π rad / s. By what angle, in degrees, does...
A solid cylinder is mounted above the ground with its axis of rotation oriented horizontally. A...
A solid cylinder is mounted above the ground with its axis of rotation oriented horizontally. A rope is wound around the cylinder and its free end is attached to a block of mass 76.0 kg that rests on a platform. The cylinder has a mass of 275 kg and a radius of 0.480 m. Assume that the cylinder can rotate about its axis without any friction and the rope is of negligible mass. The platform is suddenly removed from under...
A horse and a squirrel participate in a race over a 1.10 km long course. The...
A horse and a squirrel participate in a race over a 1.10 km long course. The horse travels at a speed of 15.0 m/s and the squirrel can do 2.50 m/s. The horse runs for m and then stops to tease the slow-moving squirrel, which eventually passes by. The horse waits for a while after the squirrel passes and then runs toward the finish line. Both animals cross the finish line at the exact same instant. Assume both animals, when...
(b) Alice is at the centre of a merry-go-round (carousel) of radius R. Bob watches from...
(b) Alice is at the centre of a merry-go-round (carousel) of radius R. Bob watches from the side while Alice rotates on the merry-go-round. Alice throws a ball of mass m radially outwards with speed v, while she rotates with constant angular velocity w. Alice and Bob talk afterwards and she tells him how she saw the ball be deflected to the side, as if it were acted upon by some force. Help Bob explain this inertial force to Alice...
17. What will happen if to a ball on a string if the string brea what...
17. What will happen if to a ball on a string if the string brea what speed? l happen if to a ball on a string if the string breaks? What direction will it move, and al erseus want to attack a cyclops with a rock and sling. He uses a.8-kg rock to a string so that he can swing it in a circle above his head. The strine is 75 meters long and while swinging, the rock makes revolutions...
In a long jump, an athlete leaves the ground with an initial angular momentum that tends...
In a long jump, an athlete leaves the ground with an initial angular momentum that tends to rotate her body forward, threatening to ruin her landing. To counter this tendency, she rotates her outstretched arms to "take up" the angular momentum (see the figure below). In 0.650 s, one arm sweeps through 0.500 rev and the other arm sweeps through 1.000 rev. Treat each arm as a thin rod of mass 3.9 kg and length 0.59 m, rotating around one...
In a long jump, an athlete leaves the ground with an initial angular momentum that tends...
In a long jump, an athlete leaves the ground with an initial angular momentum that tends to rotate her body forward, threatening to ruin her landing. To counter this tendency, she rotates her outstretched arms to "take up" the angular momentum (see the figure below). In 0.730 s, one arm sweeps through 0.500 rev and the other arm sweeps through 1.000 rev. Treat each arm as a thin rod of mass 3.9 kg and length 0.56 m, rotating around one...
A 200-gram mass was placed 7.5 cm from the axis of rotation and a 100-gram mass...
A 200-gram mass was placed 7.5 cm from the axis of rotation and a 100-gram mass was placed 15.0 cm from the axis of rotation. The system is then allowed to freely rotate. Which object had the larger rotational inertia? Explain your reasoning. A 200-gram mass was placed 7.5 cm from the axis of rotation and a 100-gram mass was placed 15.0 cm from the axis of rotation. Would it be possible to replace these two masses with four 50-gram...
Review Constants Periodic Table The horse on a carousel is 3.7 m from the central axis Part A if the carousel rotates at 0.14 rev/s, how long does it take the horse to go around twice? Express your ansver in seconds. 90 ΑΣ ? S Submit Request Answer Part B How fast is a child on the horse going (in m/s)? Express your answer in meters per second. ΟΙ ΑΣφ ? V= m/s Submit Request Answer
A horse and a squirrel participate in a race over a 1.10 km long course. The horse travels at a speed of 15.0 m/s and the squirrel can do 2.50 m/s. The horse runs for m and then stops to tease the slow-moving squirrel, which eventually passes by. The horse waits for a while after the squirrel passes and then runs toward the finish line. Both animals cross the finish line at the exact same instant. Assume both animals, when...
(b) Alice is at the centre of a merry-go-round (carousel) of radius R. Bob watches from the side while Alice rotates on the merry-go-round. Alice throws a ball of mass m radially outwards with speed v, while she rotates with constant angular velocity w. Alice and Bob talk afterwards and she tells him how she saw the ball be deflected to the side, as if it were acted upon by some force. Help Bob explain this inertial force to Alice...
17. What will happen if to a ball on a string if the string brea what speed? l happen if to a ball on a string if the string breaks? What direction will it move, and al erseus want to attack a cyclops with a rock and sling. He uses a.8-kg rock to a string so that he can swing it in a circle above his head. The strine is 75 meters long and while swinging, the rock makes revolutions...
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