Which of the following statements are true of an object moving in a circle at a constantspeed? Include all that apply.If the net force acting upon the object is suddenly reduced to zero, then the object wouldsuddenly depart from its circular path and travel tangent to the circle.The object experiences a force which has a component directed parallel to the direction ofmotion.Inertia causes objects to move in a circle.The acceleration of the object is directed tangent to the circle.There can be a force pushing outwards on the object as long as the net force in inwards.O The acceleration and the net force vector are directed pérpendicular to each other.Because the speed is constant, the acceleration is zero.

When an object is moving in circular path, then a force mv²/r called centripetal force acts…

Answered: Which of the following statements are…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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An object of mass m = 5.0 kg undergoes uniform circular motion in the r-y plane. The radius of its circular motion is R = 2.0 m. From the view shown in the diagram, it circles in the clockwise sense. At a certain moment the velocity of the object is T = (-3.0,0,0) m/s. +y (a) At that same moment, what is the net force (a vector) on the object? Calculate a numerical value and put your vector answer in component form. How much time does it take the object to complete eight-and-a-half revolu- (b) tions?
A woman pushes a 10.0 kg box across a horizontal floor with a constant force of magnitude 40.0 N directed at an angle of -25° with respect to the positive x-axis. The box moves horizontally to the right. At the origin (x=0) the box has an initial speed of 4.00 m/s and the woman pushes it to a location ofx=3.00 m. what is the force of the woman? what is the force of gravity? what is the normal force of the floor?
A pendulum bob of mass m is attached to the ceiling by a thin wire of length L. The bob moves at constant speed in a horizontal circle of radius R, with the wire making a constant angle B with the vertical. The tension in the wire R > O is greater than mg. O is equal to mg. O is less than mg. is any of the above, depending on the bob's speed v.
A car is moving on a banked curve at a speed v. A car is moving on a circular (radius = R) banked track (banking = B = 10° with respect to the horizontal) at a constant speed, v, in a circular path of radius R. A normal force, n, is exerted on the car from the track. The centripetal force is equal to the total normal force 0000 the radial component of the normal force the vertical component of the normal force none of the above
In a recent study of how mice negotiate turns, the mice ran BIO around a circular 90° turn on a track with a radius of 0.15 m. The maximum speed measured for a mouse (mass = 18.5 g) running around this turn was 1.29 m/s. What is the minimum coefficient of friction between the track and the mouse's feet that would allow a turn at this speed?
A plane in a holding pattern flies at a speed of 250 m/s in a circle with a radius of 22 km. a) Determine the banking angle of the plane (measured from the horizontal) that would cause the passengers not to need a friction force to stay in their seats. Use g = 10 m/s/s. Enter units as degrees. b) What would be the apparent weight of a 70 kg person in the plane? Use g = 10 N/kg.
A 30 kg object is moving in uniform circular motion with a radius of 10 m. It takes the object 2 s to make one complete revolution. Find the net force acting on the object.
2) Base your answer to the question on the information below and on your knowledge of physics. A gas-powered model airplane has a mass of 4.50 kilograms. A student exerts a force on a cord to keep the airplane flying around her at a constant speed of 50.0 meters per second in a horizontal, circular path with a radius of 100 meters. Calculate the magnitude of the centripetal force exerted on the airplane to keep it moving in this circular path. [Show all work, including the equation and substitution with units. ]
In the figure, a car is driven at constant speed over a circular hill and then into a circular valley with the same radius. At the top of the hill, the normal force on the driver from the car seat is 0. The driver's mass is 89.0 kg. What is the magnitude of the normal force on the driver from the seat when the car passes through the bottom of the valley? Radius Radius Number Units
A motorcycle has a constant speed of 24.5 m/s as it passes over the top of a hill whose radius of curvature is 174 m. The mass of the motorcycle and driver is 309 kg. Find the magnitude of (a) the centripetal force and (b) the normal force that acts on the cycle.
A gas-powered model airplane has a mass of 2.50 kilograms. A student exerts a force on a cord to keep the airplane flying around her at a constant speed of 18.0 meters per second in a horizontal, circular path with a radius of 25.0 meters. Calculate the magnitude of the centripetal force exerted on the airplane to keep it moving in this circular path. Remember to label all known and unknown variables then determine which formula to use. You may even draw it out to help visualize the problem.
What is the maximum speed (in m/s) that a car with a mass of 370 kg can have at point B in order for its weight to hold it to the track? (Hint: treat the car's motion at point B like uniform circular motion; the weight of the car is providing the centripetal force. How fast can the car go while remaining in its circular path?)

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