Some dragonflies splash down ontothe surface of a lake to clean themselves. After this dunking, thedragonflies gain altitude, and then spin rapidly at about 1000 rpmto spray the water off their bodies. When the dragonflies do this“spin-dry,” they tuck themselves into a “ball” with a moment ofinertia of 2.6 * 10-7kg·m2. How much energy must the dragonflygenerate to spin itself at this rate?

Q: The thin, homogeneous, circular disk B rotates about a fixed, frictionless axis O, located at its…

A: Given information: The initial angular velocity of the disk (ω1) = 2.5 rad/s The distance from the…

Q: /216 The 3-kg sphere moves in the x-y plane and has the indicated velocity at a particular instant.…

A: Given:mass of sphere, m = 3 kgSolution:a. To find the linear momentum we have:     p = mv…

Q: A ball is swung in a circle over the Cheshire Cat’s head before vanishing. If the ball has a mass of…

A: mass , m=0.500 kg radius of circle,r=1.00 m angular velocity,ω=10.0 rad/s

Q: pait I a A point mass (m) is undergoing uniform circular motion with an angular speed (o) in a…

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Q: Calculate the moment of the force P about the axis AD using (a) point A as the number center; and…

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Q: While spinning down from 500.0 rpm to rest, a solid uniform flywheel does of work 51 KJ. If the…

A: initial angular speed (ω) = 500 rpm= 500×2π60 = 52.36 radsec final angular speed (ωf) = 0 rpm work…

Q: Determine the magnitude of the moment in lb · in., With respect to the line "ab", that generates the…

A: GIVEN :-  FORCE F = 23lb from c to e x = 1.4in y = 2.5in z = 3.8in moment about ab =?

Q: A 148 g ball is released from rest H = 1.51 m above the bottom track. It rolls down a straight 45°…

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Q: L represents angular momentum, I represents moment of inertia, p represents linear momentum, m…

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Q: 3/215 Determine the magnitude Ho of the angular mo- mentum of the 2-kg sphere about point O (a) by…

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Q: 4.5 cm diameter uniform solid sphere has mass 110 g and is spinning at 1000 rpm. What’s its angular…

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Q: A disk of mass m, = 60.0 g and radius r, = 4.50 cm slides on a frictionless sheet of ice with…

A: Given mass 1=60g Mass2= 100g R1 =4.5cm R2 =5cm Velocity v=13m/s We have to find magnitude of the…

Q: A disk of mass m, = 60.0 g and radius r, = 4.50 cm slides on a frictionless sheet of ice with…

A: Given that                      disc of mass  m1 =60g ,   r1 = 4.5 cm…

Q: The perihelion of Halley’s comet is 0.586 AU and the aphelion is 17.8 AU. Given that its speed at…

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Q: The figure shows a thin rod, of length L = 1.90 m and negligible mass, that can pivot about one end…

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Q: The 4.3-kN force Fis applied at point A. (a) Compute the moment of F about point O, expressing it…

A: Introduction: Given problem is based on the moment of force. Moment of force is the rotational…

Q: As the drawing illustrates, two disks with masses m1 and m2 are moving horizontally to the right at…

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Q: The puck in Figure P8.71has a mass of 0.120 kg.Its original distance fromthe center of rotation…

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Q: s part of a carnival game, a mp = 0.578 kg ball is thrown at a stack of 17.3 cm tall, m, = 0.343 kg…

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Q: As part of a carnival game, a m, = 0.553 kg ball is thrown at a stack of 17.3 cm tall, m, = 0.363 kg…

A:

Q: As part of a carnival game, a mb = 0.453 kg ball is thrown at a stack of 15.8 cm tall, mo = 0.383 kg…

A:

Q: A disk of mass m, = 60.0 g and radius r, = 4.50 cm slides on a frictionless sheet of ice with…

A: The center of mass of two discs is at a distance of 6.65 cm from m1

Q: A simple and practical understanding of conservation of momentum problems is given by the following:…

A: Given Initial angular velocity ωo = 1 RPM

Q: Two identical ice hockey pucks, labeled A and B, are slid- ing towards each other at speed v. Which…

A: If mA and mB are the masses of the objects, when two players perform play, the direction of motion…

Q: Preblem 2 2.23 Find the magnitude and sense of the moment of the 60-lb force about points A and B.…

A:

Q: he figure, two particles, each with mass m = 0.80 kg, are fastened to each other, and to a rotation…

A: Given values:- Mass of particle,(m)=0.80 kg ----(1) Rod length,(d)=5.4 cm=5.4 x 10-2 m ----(2) Mass…

Q: Aunilom, 4.5 kg, square, solid wooden gate 2.0 m on each side hangs verically from a frictilonios…

A: Mass of gate = 4.5kg Side of gate = 2m Mass of raven = 1.1kg Initial velocity of raven = 5m/s Final…

Q: A member is loaded with force system as shown in figure. Find the Moment about A, B, C, D and E…

A: AB=110 m AC=CE=AE/2=150/2=75 m CD=50 m θ=25o Sign convention Clockwise moment--> +ve…

Q: A disc (thin cylinder) of mass 0.05 kg and radius 0.65 m is rotating on a frictionless axle at a…

A: Given,A disc (thin cylinder)mass, m = 0.05 kgradius, r = 0.65 mrotating on a frictionless axel at a…

Q: A thin circular ring of mass 80g and radius, 5cm is rotated about an axis through its center atan…

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Q: A solid sphere with radius 0.11 m and mass 2.8 kg rolls without slipping around a track that has…

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Q: AA point mass (m) is undergoing uniform circular motion with an angular speed (@) in a horizontal…

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Q: If the skater has the same speed of rotation during the following spin positions, what is the…

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Q: A 7.4 cm diameter uniform solid sphere has mass 440 g and is spinning at 2000 rpm. What’s its…

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Q: The moment of the force F=960-lb about the point O in Cartesian vector form is. t of F 1 ft B 4 ft 2…

A: let ∑Mo= moment of force around point o F=960lb

Q: ω_new,z = -5.841 rad/s R= 2.68 m I_1 = 11.1 kg⋅m2 I_2 = 16.6 kg⋅m2 ω_1,z=10.3 rad/s ω2,z=−15.5…

A: Let the axis along the length d be denoted as the y axis, and the axis along the velocity of the mud…

Q: (d) Calculate the change in kinetic energy from just before to just after the impact. Kf - K; = i…

A:

Q: A 4.0-kg block travels around a 0.50-m radius circle with an angular velocity of 12rad/s. Its…

A: The angular momentum is given by  L= m r2 w where, m is the mass, r is the radius and w is the…

Q: On a frictionless table, a m = 0.70 kg glob of clay strikes a uniform M = 0.82 kg bar…

A:

Q: A light rod of length l= 1.00 mrotates about an axis perpendicularto its length and passingthrough…

A: Given:m1 = 4.00 kgm2 =3.00 kgLength of the rod, L = 1 mAngular velocity of rod = 2.5 rad/s

Q: 1.lf a spherical body is dropped from the top of a slope, does the center of mass accelerate? If the…

A:

Q: R m 10 The figure above represents a small, flat puck with mass m = 2.40 kg sliding on a…

A: Given Mass of the flat puck, m=2.40kg Radius, R=1.50m Puck speed, v=5.00 m/s Ball mass, mb=1.30kg

Q: 7.63 • CP A skier starts at Figure P7.63 the top of a very large, fric- tionless snowball, with a…

A: Everything has "roughness." Friction is the force exerted by roughness as one object passes over…

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.