A racing car on a flat circular track needs friction between the tires and the track to maintain its circular motion. How much more friction is required for twice the speed?

Q: An 800 kg racing car travels around a circular flat path of radius r=100 m at a maximum constant…

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Q: A car rounds an unbanked curve of radius 50 m at a constant speed. If the coefficient of static…

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Q: A string under a tension of 49.0N is used to whirl a rock in a horizontal circle of radius 2.75 m at…

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Q: n 2010, the Sikorsky's X2 helicopter became the world's fastest helicopter, flying at 249 miles per…

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Q: A ball is attached to a string and rotates in a circle. If it takes 1.00 s to complete one…

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Q: It has been suggested that rotating cylinders about 11.0 mi long and 5.92 mi in diameter be placed…

A: Given: Length of cylinder, L=11 mi = 17702.784 m Diameter of cylinder, d=5.92 mi = 9527.316 m     To…

Q: A car is going around a loop-the-loop track. If the car is given an initial speed of 4.0 m/s, what…

A: Draw the free-body diagram of the car at the top of the loop.

Q: A skateboarder is attempting to make a circular arc of radius r = 14 m in a parking lot. The total…

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Q: It has been suggested that rotating cylinders about 12.5 mi long and 3.58 mi in diameter be placed…

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Q: A racetrack has the shape of an inverted cone, as the drawing shows. On this surface the cars race…

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Q: A car of mass m=1500kg is moving down a level road. It comes to a hill whose cross section is semi…

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Q: It has been suggested that rotating cylinders about 20.0 mi long and 3.53 mi in diameter be placed…

A: It is given that, l=20 mi=32186.9 md=3.53 mir=d2=3.532=1.765 mi=2840.4922 m

Q: It has been suggested that rotating cylinders about 17.0 mi long and 4.55 mi in diameter be placed…

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Q: A car is accelerating from rest.  There is a 1.6 g pebble stuck in the tread of one of the tires…

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Q: A 70 kg motorcyclist turns along a circular arc of radius 80 m, at a speed of 23 m/s. At what angle…

A: In a circular motion an object will tilt an angle of  from the vertical to move in a circular path…

Q: A2 kg rock is swung in a circular path and in a vertical plane on a 4 m length string. At the top of…

A: The necessary centripetal force is provided by the resultant of tension T and mg cosθ    Therefore…

Q: What's the linear speed of a point on the equator of a planet whose radius is 5.4 times that of…

A: Given--- radius of planet = 5.4 times of the earth radius.  We have to find--- linear of a point…

Q: It has been suggested that rotating cylinders about 16.5 mi long and 3.60 mi in diameter be placed…

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Q: A woman places her briefcase on the backseat of her car. As she drives to work, the car negotiates…

A: It is given that, r=49.7 mv=14.3 m/s

Q: A specific aircraft needs a velocity of 42m/s to generate enough lift for takeoff. It takes 50.0s to…

A: GivenSpecific aircraft needs a velocity=42 m/sTime taken by aircraft =50.0 s

Q: A 0.50-kg toy is rotated in a circular path on a horizontal frictionless table using a 0.30-m-long…

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Q: A pickup truck has a box sitting loose in its bed. The box has a mass of 2.5 kg and the coefficient…

A: Given that: m=2.5 kgM=3150 kgμ1=0.8μ2=0.9r=30mAssume that the road is unbanked.

Q: 9. A student is riding on a carousel at a speed of 4.0 m/s. If the Carousel has a radius of 5.0 m…

A: Image-1

Q: It has been suggested that rotating cylinders about 20.0 mi long and 5.69 mi in diameter be placed…

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Q: A 4 kg rock rolls around the edge of a circle with a radius of 1.5m. If it is rolling at a speed of…

A: Given data-                             rock mass (m) = 4 Kg                           radius of…

Q: It has been suggested that rotating cylinders about 17.5 mi long and 6.31 mi in diameter be placed…

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Q: A 3500 g car enters a curve with a radius of 45 cm. If the car is moving at a speed of 25 m/s, what…

A: Centripetal force =mv2R

Q: A 2.7 kg rock is swung in a circular path and in a vertical plane on a 1.7 m length string. At the…

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Q: A car is driving on a flat, circular track and accelerates uniformly from rest with a tangential…

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Q: You tie a small 68.0-g pebble to a string and start spinning it in a horizontally-oriented circle at…

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Q: It has been suggested that rotating cylinders about 15.0 mi long and 5.89 mi in diameter be placed…

A: Given, l= 15mi =15*1609m = 24135 m d= 5.89mi = 5.89*1609m =9477.01 m Where, l is the length of the…

Q: It has been suggested that rotating cylinders about 18.0 mi long and 4.49 mi in diameter be placed…

A: Given data The length of the rotating cylinder is given as L = 18 miles. The diameter of the…

Q: It has been suggested that rotating cylinders about 13.0 mi long and 4.81 mi in diameter be placed…

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Q: Q. 2: What will be the maximum speed of a car on a road turn of radius 30 m, if the coefficient of…

A: Given Data :                     Radius (r)=30 mCoefficient of friction (μ)=0.4g=9.8 m/s2 To find :…

Q: It has been suggested that rotating cylinders about 18.5 mi long and 4.40 mi in diameter be placed…

A: AIM: To determine the angular speed of the cylinder such that, the centripetal acceleration is equal…

Q: a. You're driving over the top of a hill with a radius of 15.075 m. How fast would you need to drive…

A: In general case, the centrifugal force and the normal reaction will balance the weight. So we have…

Q: It has been suggested that rotating cylinders about 18.5 mi long and 4.60 mi in diameter be placed…

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Q: In an amusement park ride, a child stands against the wall of a cylindrical room that is then made…

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Q: It has been suggested that rotating cylinders about 18.5 mi long and 5.52 mi in diameter be placed…

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Q: It has been suggested that rotating cylinders about 17.5 mi long and 4.73 mi in diameter placed in…

A: AIM:To determine the angular speed of the cylinder such that, the centripetal acceleration is equal…

Q: It has been suggested that rotating cylinders about 10.5 mi long and 3.54 mi in diameter be placed…

A: When in space the centripetal force on the cylinder will be equal to the gravitational force on the…

Q: A turntable with a mass of 12 kg and a radius of 2 meters spins at a constant angular velocity of…

A: M= 12kg ,  R= 2m , W disk= 140rpm = 14.66 rad/s  m= 0.5kg , r= 0.02m , it's center at d=1m away from…

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.