two other bigger children are going to push on the merry-go-round rim to bring it from rest to 45.0 rev/min in 39.0 s, with what force magnitude must each child push

Q: A 50.0-kg child stands at the rim of a merry-go-round of radius 2.95 m, rotating with an angular…

A: a) The expression for find centripetal acceleration is ac=v2r=ωr2r=ω2r Insert values in the above…

Q: A rounded stone of mass 3.0 kg and radius 0.08 m starts from rest at the top of a ramp, inclined…

A:

Q: A 1.25 g pepperoni rests at a distance of 7.5 cm from the centre of a pizza being spun by the pizza…

A: mass (m) = 1.25 g = 0.00125 kg distance from center (r) = 7.5 cm = 0.075 m Angular speed (ω) = 68…

Q: In the figure, block 1 has mass m1 = 480 g, block 2 has mass m2 = 550 g, and the pulley is on a…

A:

Q: You have a grindstone (a solid disk) that is 642.93 kg, has a 0.114-m radius, and is turning at…

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Q: 16. Zorch, an archenemy of Superman, decides to slow Earth's rotation to once per 28.0 h by exerting…

A: Given: The decided time taken to complete one rotation is tf=28.0 h. The value of applied force is…

Q: takeoff a commercial jet has a 70.0 m/s speed. Its tires have a diameter of 0.400 m.(a) At how many…

A:

Q: A 80 Kg man rides a spinning amusement park ride that has a radius of 10.8 m. If the person's…

A: Given data :              Mass of the man , m = 80 kg              Radius , r = 10.8m…

Q: A 60.31g mass on the end of a 12.2cm string is rotated in a vertical circle. Determine the rotation…

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Q: You want to centrifuge at 2660 g and the centrifuge has a radius of rotation of 9.5 cm. What RPM…

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Q: 8. A 50.0-kg child stands at the rim of a merry-go-round of radius 2.85 m, rotating with an angular…

A:

Q: In a clothes dryer, the rate of rotation is chosen so that a small piece of clothing will lose…

A:

Q: At takeoff a commercial jet has a 70.0 m/s speed. Its tires have a diameter of 0.400 m. (a) At how…

A: Linear speed of commercial jet (v) = 70 msdiameter of tires (d) = 0.400 m radius of tires (r) =…

Q: QUESTION 7 A wheel rotates with an angular speed of 50.0 rad/s. How many revolutions will it make in…

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Q: A turntable is off and is not spinning. A 0.9 g ant is on the disc and is 14 cm away from the…

A: The objective of the question is to find the angular velocity, tangential velocity, and tangential…

Q: The angular displacement of the centrifuge is given by 0 = 3.6[t + 28e 0.016t - 28] rad, where t is…

A:

Q: Andre lives in a hot climate, works outside of the home from approximately 8:00 am to 5:00 pm,…

A: Let us determine the time for which Andre uses the fan. Let us consider that he stays at home on…

Q: A disk 6.00 cm in radius rotates at a constant rate of 98.0 rev/s about its central axis. (a)…

A: Given:  radius of disc, r = 6 cm = 0.06 m  frequency of rotation, f = 98 rev/s  distance from the…

Q: A small coin is placed on a flat, horizontal turntable . The turntable rotates at a constant rate of…

A: According bartleby guidelines only three sub parts can be answered.  Given data-

Q: Zorch, an archenemy of Superman, decides to slow the Earth's rotation to once per 28.0 hours by…

A: initial angular velocity of earth,ω0=2π23×60×60+(56×60)+(4)s=72.92×10-6 rad/sFinal angular velocity…

Q: A coin is placed on a platform that makes 3 turns in 3.14s. Since money can stand 5cm away from the…

A:

Q: A 19.0 kg child is riding a playground merry-go-round that is rotating at 40.0 rpm. (a) What…

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Q: A torque of magnitude 400 Nm acting a body of mass acceleration of 20 rad/s. Calculate M.I. of the…

A: To find-(1) M.I. of body(2) Radius of gyration Given-τ=100 NmM=4 kgα=20 rad/s2

Q: A record turntable is rotating at 33 rev/min. A watermelon seed is on the turntable 1.1 cm from the…

A: Recall ar=ω2r=rdial accelerationNow when turntable rotates with angular acceleration, it has radial…

Q: Zorch, an archenemy of Superman, decides to slow Earth’s rotation to once per 28.0 h by exerting an…

A: The initial and final angular velocity is ωi=1 rev24 hr2πrad1 rev1 hr3600 s=7.27×10-5rads ωf=1 rev28…

Q: A turntable of radius 60cm undergoes constant acceleration from rest to 5.4 rad/s in 2.8s. for a…

A: Given. ωi=0ωf=5.4 rad/st1=1.2 sect2=2.8sec

Q: A 170-kg merry-go-round of radius 2.10 m is rotated by pulling a rope that is wrapped around its…

A:

Q: A hoop and a disk, both of 0.72- m radius and 2.0- kg mass, are released from the top of an inclined…

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Q: A carousel with an angular speed of 0.25 rev/s.  As it is brought to rest with a constant…

A: An angular speed, ω=0.25 ravs=0.25×2π rads=1.57 rads and ω0=0. Time, θ=6.5 rev=6.5×2π rad=40.82 rad…

Q: PRACTICE IT Use the worked example above to help you solve this problem. A 49.7 kg circus acrobat…

A: Given, 1) Practice: m= 49.7kg h=1.57m k= 6900 N/m  2) Exercise:  m= 6.37kg h= 0.77m  k= 950N/m

Q: A turntable is off and is not spinning. A 0.9 g ant is on the disc and is 14 cm away from the…

A: The objective of the question is to determine the angular velocity, linear velocity, angular…

Q: A piece of metal is pressed against the rim of a 3.2- kg, 18- cm-diameter grinding wheel that is…

A: Given: The mass of the wheel is 3.2 kg. The diameter of the wheel is 18 cm. The coefficient of…

Q: For this question, use proper sig.figs. A cart and a bucket are attached to a rope, which is passed…

A: Have a look

Q: A 65 kg student is in a car traveling at 25 m/s on a hill of radius 110 m. When the car is at the…

A:

Q: A 35.0 kg child is riding a playground merry-go-round that is rotating at 40.0 rev/min. What…

A: we know that centripetal force  Fc= mw2Rwhere m is massw is angular velocity R is distance from…

Q: A turntable is off and is not spinning. A 0.9 g ant is on the disc and is 14 cm away from the…

A: The objective of the question is to determine the angular velocity, linear velocity, angular…

Q: Object A weighs 64.4 lb and has a radius of gyration of 0.60 ft with respect to a horizontal axis…

A: Given that: Weight of A, WA=64.4 lbHence the mass of A, MA=WAg=64.432.2 =2 slugRadius of gyration of…

Q: A turntable is off and is not spinning. A 1.5 g ant is on the disc and is 10 cm away from the…

A: Soluction

Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.