You swing a weight attached to a string in a vertical circle. At the top of the circle the string just barely goes slack for an instant. At this point the centripetal acceleration of the weight isA. Greater than g.B. Less than g.C. Equal to g.D. Can’t answer without knowing the weight’s speed.

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Q: 9. Melissa and Cody are on a fun fair ride that spins them in a circle with radius 6 meters. If…

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Q: 10. A 5-Mg airplane is flying at a constant speed of 350 km/h along a horizontal circular path of…

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Q: You swing a 2.2kg stone in a circle of radius 58 cm. At what speed should you swing it so its…

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Q: At NASA the centrifuge that astronauts train in can spin at 42 m/s and has a radius of 9 m. At that…

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Q: 9. The centripetal acceleration and frequency of an object rotating in a circle would have a direct…

A: Solution:  9. Centripetal acceleration is given by: ac=ω×v…

Q: A high-speed test track for cars has a curved section an arc of a circle of radius R = - 858 m. The…

A: Detailed solution of given question is given in below steps.

Q: A car goes around a curve at 40 m/s. An accelerometer in the car measures the centripetal…

A: The velocity of the car is v=40 m/s. The centripetal acceleration is ac=8 m/s2.

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Q: A number of amusement parks have rides that make vertical loops like the one shown. For safety, the…

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Q: 52. mmh A child is twirling a 0.0120-kg plastic ball on a string in a hor- izontal circle whose…

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Q: a 2000 kg car rounds a flat curve of radius=60m at a velocity of 9m/s a. what centripetal force…

A: Mass of car = 2000 kg  Radius of curve = 60 m  Velocity = 9 m/s

Q: A person whirls a 0.250-kg stone in a 1.00-m-radius horizontal circle at the end of a string. The…

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Q: 14. An object is swung around on a string in a vertical circle, while its speed is slowly increased.…

A: At the bottom of the vertical circle. Since at the bottom, tension is maximum.

Q: Jessica is riding on a merry-go-round on the outer horse that sits at a distance of 8.0 m from the…

A: speed of Julie =distancetime=2πRT=2π×640=0.942 m/s

Q: A boy is riding a merry-go-round at a distance of 7.00 m from its center. The boy experiences a…

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Q: 8) A boy whirls a stone in a horizontal circle 2.0 m above the ground by means of a string 1.5 m…

A: Distance of the stone from the ground is h = 2.0 m Length of the string is l = 1.5 m Distance…

Q: 4. As the car goes around the curve, the centripetal force is directed (1) Toward the center of the…

A: Draw the figure while the car moves around the curve

Q: 3. Go-karts have a mass of 70.0 kg. A person with a mass of 50.0 kg rides inside. The go-kart track…

A: The frequency will be = 0.042 Hz.

Q: velocity of locomotive train

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Q: You travel to a strange planet and find that you weigh 2,000 N.  The planet rotates on an axis,…

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Q: A rollercoaster car has a speed of 55 kph (kilometers per hour) as it reaches the top of a circular…

A: Given data The speed of the rollercoaster car is v=55 km/h=15.27 m/s The radius is r=20 m   The…

Q: A 1250-kg vehicle travels at a constant speed of 7.00 m/s around a circular track that has a radius…

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Q: A tether-ball attached to the end of a 4.00 m rope is swung in a horizontal circular path around a…

A: Given Data: The mass of a tether-ball is, m=1.00 kg The angular speed of a tether-ball is, ω=45.0…

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

A: Expression for centripetal acceleration -  ac=v2r .....(1) Expression for angular velocity -  v=ωr…

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A: Given: Mean radius of the moon is 3.85×108 m. Time taken by the moon to complete one revolution…

Q: 4. A Hammer thrower swings a 5.0 kg ball that rotates at a constant speed of 4.0 m/s on the end of…

A: A hammer thrower is revolving a ball in a horizontal circle by applying the force such that the ball…

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A: Centripetal force is the net force acting on a particle when it is performing the circular motion.…

Q: A one-ton car moving at 12 m/s takes a turn around a circle with a radius of 23.5 meters. Determine…

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Q: A ball is attached to a string and swung in a vertical circle. The ball is swung at a faster and…

A: A ball is attached to a string and swung in a vertical circle. The ball is one at a faster in a…

Q: 7. A small body of mass 3 kg revolves uniformly in a circle on a horizontal frictionless surface…

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Q: Centripetal force/circular motion Let's say you have a plastic electric fan that is turned off.…

A: Centripetal force is defined as the force needed to keep the object moving in the circular motion.…

Q: the magnitude of the centripetal force acting on the car

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Q: A 0.35-kg ball moving in a circle at the end of a string has a centripetal acceleration of 11 m/s2.…

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A: Given data: The length of the helicopter blade is, L=4 m The frequency of the bled's rotation is, ω=…

Q: The equation used to solve for centripetal force is: F. = mv² How can we rearrange this equation to…

A: Fc=mv2rrearranger=mv2Fc

Q: A child is twirling a 0.0103-kg ball on a string in a horizontal circle whose radius is 0.0907 m.…

A: given that Mass of ball(m) =0.0103 kg Radius of horizontal circle(r) =0.0907 m Time period of…

Q: A race car rounds a curve at 54 m/s. The radius of the curve is 428m, and the car's mass is 630 kg.…

A: Given: Speed of the car in the round u =54 m/s Radius of the curvature           R = 428 m Mass of…

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Q: 6. A small body of mass 3 kg revolves uniformly in a circle on a horizontal frictionless surface…

A: Given data The mass of the body is: m = 3 kg The radius of the circle is: r = 0.2 m The number of…

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.