4. A mass m rotates at constant speed v at a radius of R from the rotational axis. A force F provides the centripetal force Fc. If you double the radius R of the motion, without changing m or v, the force needed to keep the mass in circular motion would (a) stay the same. (b) double. (c) halve. (d) quadruple.

4. A mass m rotates at constant speed v at a radius of R from the rotational axis. A force F provides the centripetal force Fc. If you double the radius R of the motion, without changing m or v, the force needed to keep the mass in circular motion would (a) stay the same. (b) double. (c) halve. (d) quadruple.

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)...

See similar textbooks

Similar questions

Thanks
15. A road is banked at an angle of 10 degrees. If the road is iced over (no friction), the maximum speed you can safely negotiate the curve whose radius is 51.0 m is: (a) 13.6 m/s (b) 11.1 m/s (c) 7.1 m/s (d) 9.3 m/s
2. A mass m rotates at constant speed v at a radius of R from the rotational axis. A force F provides the centripetal force Fc. If you double the mass m, without changing R or v, the force needed to keep the mass in circular motion would (a) stay the same. (b) double. (c) halve. (d) quadruple.
11. A ball of mass m 0.10 kg is at the lower end of a light rope that is attached to the ceiling. The ball moves with constant speed in a horizontal circle of radius r=0.60 m when the rope makes a constant angle of 0 = 36.9° with the vertical. The tension force in the rope is: (A) 1.00 N (B) 1.67 N (C) 0.80 N (D) 0.60 N (E) 1.25 N (F) None of the above Answer LOs: A: B: C: D: E: 3,18,19,21,24 F: 111 Pendulum in circular motion (Problem 11).
3. You stand on a merry-go-round which is spinning at f = 0.25 revolutions per second. You are R= 200 cm from the center. Figure-3 (a) Find the angular speed w at which it is spinning. (b) Find the centripetal acceleration, a, with which it is spinning. (c) What is the minimum coefficient of static friction 4, between your shoes and the floor that will keep you from slipping off?
Please don't provide handwritten solution...
5. A 50 kg object is moving in a circle with a radius of 5 m and a tangential velocity of 5 m/s. Find the centripetal acceleration and centripetal force of this object.
12. An object is moving in a horizontal circular path at the end of a string. The tension in the string is 12.00 N. If the object's speed is decreased by 25%, and the length of the string decreased by 10%, what would be the new tension (in newtons)? (a) 7.50 (b) 6.54 (c) 7.88 (d) 18.87 (e) None of these
3. A mass m rotates at constant speed v at a radius of R from the rotational axis. A force F provides the centripetal force Fc. If you double both, the mass m and the radius R of the motion, without changing v, the force needed to keep the mass in circular motion would (a) stay the same. (b) double. (c) halve. (d) quadruple.
A 7.77 Kg rubber stopper spins around on a string at a speed of 0.891 rad/sec. What is the centripetal acceleration if the string has a radius of 1.82 m? Round your answer to 2 decimal places.
5. A hoop of radius 0.24 m and a mass of 0.50 kg is released from rest and allowed to roll down an inclined is the translational speed (v) of the hoop after dropping a vertical distance of 2.60 m? m/s MOJS 60 ss? ssfól s 60 ssfo What