Physics Laboratory Experiments
8th Edition
ISBN: 9781285738567
Author: Jerry D. Wilson, Cecilia A. Hernández-Hall
Publisher: Cengage Learning
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Chapter 10, Problem 1Q
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How much centripetal force (in N) is required to keep an object with mass 2.5kg moving uniformly in a circle of radius 0.33m at a constant linear speed of 1.7m/s?
A tetherball swings in a horizontal circle. If the radius of the swing is increased 9 times but the tangential speed remains the same, by what factor does the centripetal force change?
An object moves in a circle. If the mass is tripled, the speed halved and the radius unchanged then the magnitude of the centripetal force must be multiplied by a factor of
A) 3/2
B) 3/4
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E)12
Chapter 10 Solutions
Physics Laboratory Experiments
Ch. 10 - Prob. 1ASACh. 10 - Prob. 2ASACh. 10 - Prob. 3ASACh. 10 - Prob. 4ASACh. 10 - If the centripetal force acting on an object in...Ch. 10 - Suppose that the centripetal force acting on an...Ch. 10 - Explain how the centripetal force is directly...Ch. 10 - How does the centripetal force vary with the...Ch. 10 - If the centripetal force on an object in uniform...Ch. 10 - Does the centripetal force acting on an object in...
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- A car, with mass m, is racing around a circular track with some velocity v. If the car suddenly had its mass tripled and velocity doubled, what would happen to the centripetal acceleration needed for the car to conitnue circular motion?arrow_forwardA car with a mass of 1000kg travels around a banked curve of radius 40m with a speed of 27m/s. In the absence of friction, what are the values of the horizontal and vertical components of the normal force?arrow_forwardA car turns a certain curve of radius 24.98 m with constant linear speed of 15.67 m / s. If the centripetal force experienced by that car is 34.652 kN, what is the mass of the car?arrow_forward
- An object of mass 1.0 kg moves in a circle of radius 1.0 m at constant speed of 2.0 m/s. Find the work done by the centripetal force that accelerates the object. [centripetal force = mv2/r]arrow_forwardA planet orbits a star, in a year of length 3.51 x 107 s, in a nearly circular orbit of radius 3.92 x 1011 m. With respect to the star, determine (a) the angular speed of the planet, (b) the tangential speed of the planet, and (c) the magnitude of the planet's centripetal acceleration.arrow_forwardConsider an object, of mass m and speed v, moving with uniform circular motion at some radius r. If the radius remains fixed, but the mass m is tripled and the speed v halved, the centripetal force will change by a factor of: Group of answer choices 9/4 3/4 6 3/2 12arrow_forward
- A jet pilot takes his aircraft in a vertical loop , if the jet is moving at a speed of 1140 km/m , at the lowest point of the loop , determine the minimum radius (r) of the circle , so that the centripetal acceleration at the lowest point doesn't exceed 6.4 g's and also calculate the 70 kg pilot's effective weight ( The force with which the seat pushes up on him ) at the bottom of the circle , and at the top of the circle ( assume the same speed ) FNbottom , FNtop ?arrow_forwardA 10.7 kN car travelling at 13.4 m/s attempts to round an unbanked curve with a radius of 70 m. What force of friction is required to keep the car on its circular path?arrow_forwardIn a horizontal uniform circular motion, is the centripetal force acting on the stopper provided by the tension in the string, always equal to the weight of the hanging mass?arrow_forward
- If you are in a car that rounds a curve, and you are not wearing a seat belt, and you slide across your seat and slam against a car door, what kind of force is responsible for your slide—centripetal, centrifugal, or no force? Why is the correct answer “no force”?arrow_forwardWhich of the following point toward the center of the circle in uniform circular motion? Please select all that apply A) Velocity B) Displacement C) Acceleration D) Net Force E) Centripetal/Radial Force F) None of the abovearrow_forwardA 5.0 kg-mass rotates horizontally at a rate of 1 revolution per second. If the radius of the circular path it describes is 2.0 m find the magnitude of its centripetal acceleration.arrow_forward
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