A car is driving through the bottom of a circular valley at a speed vv as shown in the picture. When the car is at the bottom, how does the normal force on the car compare with the car's weight?  (a) The normal force is greater than the car's weight. (b) The normal force is equal to the car's weight.  (c) The normal force is less than the car's weight.

Q: A 0.5 kg mass attached to the end of a string swings in a vertical circle having a radius of 1.6 m.…

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Q: A highway curve has 200-ft radius and is designed to accommodate vehicles at a maximum speed of…

A: Let F denote the centripetal force, vmax denote the maximum velocity, m denote the mass of the…

Q: A car is moving along a curved road with a radius of 9m. If the curve is banked at 9 degrees, what…

A: Given: Radius r = 9 m Angle θ = 9o To determine: Velocity v. Formula used: v=rgtanθ Here, g is the…

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Q: Assume that the box and disk each have mass m, the top of the incline is at height h, and the angle…

A: Time taken by the box: The component of weight acting on the objects downslope is, mg sin θ  From…

Q: A ball attached to a string is swinged circularly in vertical plane as shown in figure. Given the…

A: Given(s): The mass of the ball, m=320 g=0.32 kg Radius, r=1.20 m

Q: A roller-coaster car has a mass of 500 kg when fully loaded with passengers. At the bottom of a…

A: (given) Mass (m) of roller coaster car = 500 kg   Radius (R) of circular dip = 40 m Speed (v) of the…

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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 car enters a level, unbanked semi-circular hairpin turn of 300 m radius at a speed of 40 m/s. The…

A: The centripetal acceleration for the semi circular motion is provided by the kinetic friction…

Q: Say True or False: A 1500kg car rounds a curve on a flat road of radius 70m. at a speed of 15m/s.…

A: mass of car (m) = 1500 kg radius of curve (r) = 70 m speed of car (v) = 15 m/s coefficient of static…

Q: A car of mass m passes over a hump in a road that follows the arc of a circle of radius R as shown.…

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Q: Canadian National Team member, Derek Livingston (mass=120 kg), straps on his snowboard and starts…

A: given that mass = 120 kg radius curve = 15.0 m speed = 16.4 m  normal reaction force at bottom N =…

Q: A ball of mass 2.5 kg rotates in a horizontal circle as indicated in the figure , with a constant…

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Q: An air puck of mass m1 = 0.25 kg is tied to a string and allowedto revolve in a circle of radius R =…

A: (a). the tension in the string is

Q: In the figure, a stunt car driver negotiates the frictionless track shown in such a way that the car…

A: Given Data : The mass of the car is given as m = 1800Kg. The radius of the circular track is given…

Q: A commercial airliner weighing 4x105 N (90,000 lbs) makes a 10º banked turn in a horizontal circle…

A: The given values are, w=4×105 Nθ=10°v=89.4 m/s

Q: In the figure, a car is driven at constant speed over a circular hill and then into a circular…

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Q: A 500 g box undergoes a uniform circular motion at a speed of along a 30° inclined banked curve. The…

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Q: A puck of mass m = 49.0 g is attached to a taut cord passing through a small hole in a frictionless,…

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Q: A car is moving along a curved road with a radius of 10m. If the curve is banked at 9 degrees, what…

A: r = 10 m θ = 90 v = ?

Q: a car is driven at constant speed over a circular hill and then into a circular valley with the same…

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Q: At an amusement park loop-the-loop ride, the loop has a radius of 10 m. In one of the cars, you are…

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A: Given,The radius of the curve, r = 62mSpeed of the car, v = 15m/s

Q: A 20g bead is attached to a light 120-cm-long string as shown in the figure. This bead moves in a…

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Q: A curve on a racetrack of radius 70 m is banked at a 15° angle. At what speed can a car take this…

A: The speed of the car can be given by v=rgtanθ

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Q: A kid whirls a rock of mass 0.5 kg in a vertical circle of radius 0.80 m. (a) What is the minimum…

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Q: =J (e) (b) Fe= () 6. A pendulum that consists of a ball (m = 1.50 kg) attached to a light cord…

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Q: A car of mass 500 kg is traveling on a circular banked roadway that is inclined at an angle of 0 =…

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Q: The answer to the first question is correct I can't figure out the second one.

A: Draw the free-body diagram of the car.

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Q: On a frictionless inclined, uniform, circular track the only force keeping a car moving around the…

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Q: A curve at a racetrack has a radius of 800 m and is banked at an angle of 7.0°. On a rainy day, the…

A: radius, r = 800 m  Angle = 7° coefficient of friction = 0.5

Q: An automobile with a mass of 1350 kg follows a curved road with a radius of 45m. This time, however,…

A: Given that:Mass of the automobile, m= 1350 kgRadius of the road, r=45mCoefficient of kinetic…

Q: A car goes around a flat curve of radius 50 m at a speed of 14 m/s. What must be the minimum…

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Q: A 4.0 kg car is traveling around a vertical loop with a radius of 2 m. What is the normal force from…

A: Given data: Mass of car is, m=4.0 kg. Radius of loop is, r=2 m. Speed of car is, v=5 m/s.

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Q: A mountain goat drives around a e at a speed of 17 m/s with a box of pineapples in the back of her…

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Q: A fire acrobat is swinging a fireball attached to an 80cm string in a vertical circle. If the…

A: l = r = 80 cm = 0.8 m v = 10.14 m/s T = 13 N m = ?

Q: A car travels on a road that, if viewed from the side, has a semicircular bump. When at the top of…

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Q: A commercial airliner weighing 4x105 N (90,000 lbs) makes a 10º banked turn in a horizontal circle…

A:

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!