Mr. M is taking a turn with radius r at a speed v. If he maintains the same speed but takes the turn with 1/2r, how does the second centripetal acceleration compare to the first? (a) 4 times smaller (b) 2 times smaller (c) 4 times bigger (d) 2 times bigger

Q: An automobile travels at a steady 90 km/h along a road lead￾ing over a small hill. The top of the…

A: The speed of the automobile in m/s is, 90 km/h=90 km/h×1 m/s3.6 km/h              =25 m/s

Q: A fairground ride spins its occupants inside a flying saucer-shaped container. If the horizontal…

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Q: A ball traveling in a circle with a constant speed of 12 m/s has a centripetal acceleration of 9 m/s…

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Q: Mr. Muscedere is taking a turn with radius r at a speed v. If he maintains the same speed but takes…

A: we know that centripetal expression = v2​​​​​​​ / r  V = instant velocity  r = radius

Q: A certain fan blade has a radius of 0.25-m. A point on the rim of the blade has a centripetal…

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Q: A certain fan blade has a radius of 0.25-m. A point on the rim of the blade has a centripetal…

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Q: Explain why centripetal acceleration changes the direction of velocity in circular motion but not…

A: Work done is the dot product of force and displacement.The amount of work done upon an object can be…

Q: When an object travels in uniform circular motion, what is the angle between its velocity and its…

A: When an object moves along a circular path, it is called the circular motion of the object. When an…

Q: mv? =ma = 1. The Cajun Cliffhanger at Great America is a ride in which occupants line the perimeter…

A: The centripetal force needed for uniform circular motion is given by Fc=mv2r where r is the radius…

Q: A ball rotates in a harizontal circular path of radius r0.5m with a constant speed. The radial…

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Q: A ball attached to the end of a string is swung around in a circular path of radius r. If the radius…

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Q: In uniform circular motion, which of the following quantities are constant: speed, instantaneous…

A: Due to the uniform circular motion, the speed of the object will be constant.

Q: Newton of the Carolina Panthers throws a perfect football spiral at 6.0 rev/s. The radius of a pro…

A: given frequency f = 6 rev/s angular velocity ω = 2πf = 2 × 3.14×6  = 37.68 rad/s radius r = 8.5 cm =…

Q: an object with a mass of 0.5 kg is doing uniforma cicular motion, the circle radius is 1.2 meters…

A: Calculate the angular velocity using the information 20 turns in 33 s. ω=20(2π)33ω=3.81 rad/s Now…

Q: An astronaut is rotated in a horizontal centrifuge at a radius of 5.6 m. How many revolutions per…

A: Radius , r = 5.6 m Acceleration = 5.3g To find = revolutions per min

Q: boy rides a small car at a speed of 12 km / hr along a circular path with radius of 3.5 m. Wat is…

A: boy rides a small car at a speed of 12 km / hr along a circular path with radius of 3.5 m.

Q: A runner taking part in the 200 m dash must run around the end of a track that has a circular arc…

A: Given data: Distance traveled (d) = 200 m Radius of circular path (r) = 35 m Time (t) = 24.2 s…

Q: A football is kicked with an initial velocity of 45 m/s at an angle of 30-degrees  with the…

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Q: A car, with mass m, is racing around a circular track with some velocity v. If the car suddenly had…

A: Centripital acceleration a1= mv2/r  If mass m=3m  Velocity v=2v

Q: A car rounds a curve with a radius of 40m at a speed of 18m/s. What is the centripetal acceleration…

A: Using the formula,

Q: An object of mass 0.40 kg attached to a string of length 0.87 m is swung in a circle at a constant…

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Q: The moon revolves around the Earth in a circular orbit with a radius of 3.84×108 ?.?? ????? 27.3…

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Q: An athlete in a hammer-throw even swings a 7.0 kg hammer in a horizontal circle at a constant speed…

A: Centripetal acceleration changes with time however it’s magnitude can be the same

Q: A medical saw is rotating at a constant rate of 15 rev per/second. If it has a radius of 12 cm. what…

A: To find the centripetal acceleration Given :  radius = 12 cm = 0.12 m Rotating at a constant rate of…

Q: A hawk flies in a horizontal arc of radius 13.8 m at a constant speed 3.20 m/s.

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Q: To train for the physical demands of a shuttle launch, a 78.4 kg astronaut is put into a large…

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Q: A ball whirled in a horizontal circle 1.5 m in radius at a rate of 1 revolution every 2 secs. Find…

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Q: A Formula One race car is traveling at 89.0 m/s along a straight track enters a turn on the race…

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Q: What is the magnitude of the centripetal acceleration of a car following a curve of radius 500 m at…

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Q: A child is standing on the edge of a 3-meter radius merry-go-round that is spinning at a constant…

A: The magnitude of the centripetal acceleration is given by, ac=ω2r

Q: A jet is flying at 134.1 m/s along a straight line and makes a turn along a circular path level with…

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Q: A 66 kg skateboarder travels around a circular ramp with a radius of 13.2 m at a constant speed of…

A: Given, Mass of the skateboarder, m = 66 kgradius of the circular path, r = 13.2 mspeed, v = 4.3 m/s

Q: An airplane flies in a horizontal circle of radius 500 m at a speed of 150 m/s. If the plane were to…

A: Radius of horizontal circle,(r)=500 m -----(1) [Given] Speed of the airplane,(v)=150 m/sec -----(2)…

Q: Imagine you are on an amusement park and on a train ride. At some point the train ride follows a…

A: The expression for the centripetal acceleration is

Q: The cars on an amusement park ride travel at a constant speed velocity at 4.0 m/s on a circular…

A: Given Data: The constant velocity of a car is, v=4.0 m/s The radius of a circular track is, r=4.0 m…

Q: cle traveling at 2 m / s in a circular path and 2 turns in all parts of the path, the radius of the…

A: Given values:- Velocity of bicycle,(v)=2 m/sec -----(1) Number of turns,(N)=2 turns ----(2) Let us…

Q: A truck moving along a curve in the road at 20.01 meters per second has centripetal acceleration of…

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Q: Which causes a greater effect to the magnitude of the velocity of an object in uniform circular…

A: A change in force requires either a change in magnitude or a change in radius. They are all linked.…

Q: A race car starts from rest on a circular track of radius 632m. The cars speed increases at the…

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Q: A planet orbits a star, in a year of length 3.95 x 107 s, in a nearly circular orbit of radius 2.19…

A:

Q: A lasso is whirled making a horizontal circle 2.3 m in radius. If each revolution of the lasso…

A: In circular motion, since the direction of velocity changes at every point, an acceleration acts…

Q: A race car starts from rest on a circular track of radius 632m. The car’s speed increases at the…

A: When the centripetal and tangential accelerations are equal, ω2R=v2R0.690m/s2=v2632mv=20.91 m/s

Q: If the standing astronaut moves with a speed of 3.1 m/s at a distance of 3.2 m from the center of…

A: Given data: Speed (v) = 3.1 m/s Radius (r) = 3.2 m Required: Centripetal acceleration (ac) as a…

Q: A jet is flying at 200 m/s along a street light and makes a turn on along a circular path level with…

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Q: A child sits at a distance of 3 m from the axis of a merry-go-round in an amusement park. If the…

A: Given data:  Distance (r) = 3 m Angular displacement (Δθ)= 2 revolution Time (t) = 5 s Required:…

Q: An airplane flies in a horizontal circle of radius 500 m at a speed of 150 m/s. If the plane were to…

A:

Q: An object moving in a circle with a radius of 0.5 meters accelerates tangentially at 5 meters per…

A: Given: Radius of circle = 0.5 m. Tangential acceleration at = 5 m/s2. Net acceleration an = 9 m/s2.

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.