n the figure, a 1.15 kg ball is connected by means of two massless strings, each of length L = 1.69 m, to a vertical, rotating rod. The strings are tied to the rod with separation d = 1.69 m and are taut. The tension in the upper string is 54.0 N. What are (a) the tension in the lower string, (b) the magnitude of the net force F net on the ball, and (c) the speed of the ball? Rotating rod (a) Number i Units (b) Number i Units LUnits

n the figure, a 1.15 kg ball is connected by means of two massless strings, each of length L = 1.69 m, to a vertical, rotating rod. The strings are tied to the rod with separation d = 1.69 m and are taut. The tension in the upper string is 54.0 N. What are (a) the tension in the lower string, (b) the magnitude of the net force F net on the ball, and (c) the speed of the ball? Rotating rod (a) Number i Units (b) Number i Units LUnits

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

A bulldozer drags a 252 kg long along the rough horizontal ground. The cable attached to the log applies a 525 N force at an angle of 30.0 degrees above the ground. The coefficient of kinetic friction between the log and the ground is 0.150. Assume the direction of motion is +x and upwards is +y. What is the normal force acting on the log? What kinetic friction force is acting on the log? (With proper sign) What is the acceleration of the log?
A block of mass M is suspended at rest by two strings attached to walls, as shown in the figure. The left string is horizontal with tension force T2 and and the right string with tension force T, makes an angle e with the horizontal. g is the magnitude of the gravitational acceleration. Which of the following statements is true? Select all apply. T2 M O The net force along the y-component is non-zero. O The acceleration along the x-component is zero. O The net force along the x-component is zero. O The acceleration along the y-component is non-zero. O The acceleration along the y-component is zero. O The acceleration along the x-component is non-zero. O The net force along the y-component is zero. O The net force along the x-component is non-zero.
t The center of mass of the arm shown in the figure is at point A. Find the magnitudes (in N) of the tension force F, and the force F which hold the arm in equilibrium. (Let 8 = 24.0º.) Assume the weight of the arm is 44.7 N. S 0 8.00 cm N e N 29.0 cm. F
A man exerts a horizontal force of 131 N on a crate with a mass of 36.2 kg. (a) If the crate doesn't move, what's the magnitude of the static friction force (in N)? Make a free-body diagram and apply the x-component of Newton's second law. N (b) What is the minimum possible value of the coefficient of static friction between the crate and the floor? (Assume the crate remains stationary.) Apply the relationship between static friction and the normal force.
A car of mass m₁ 1000 kg is connected to a trailer of mass m2 = 400 kg by a taut inextensible cable. The car's engine provides a constant forward driving force Fx = 7000 N, which causes the car-plus-trailer to accelerate forwards along the horizontal x-axis. The tension of the cable produces a force on the trailer and also a force on the car. You may assume that the magnitude of the two forces is the same. You may also ignore friction. What is the tension in the cable joining the car to the trailer? Give your answer by entering a number, correct to an appropriate number of significant figures, in the empty box below.
A cardboard box rests on the floor of an elevator. The box has a mass m = 2.75 kg and the elevator has an upward acceleration of a. a. Write an expression for the sum of the forces acting on the box in the y-direction, ΣFy, given that up is the positive y-direction. Your answer should be in terms of FN, m, and g. b. Write an expression for the normal force, FN, that the block experiences in terms of the elevator's acceleration, the block's mass, and the acceleration of gravity. c. If the elevator's acceleration has a magnitude of g in the downward direction, what would the normal force, FN1 be in Newtons? d.If the elevator's acceleration had a magnitude of g in the upward direction, what would the normal force FN2 be in Newtons?
A teenager of mass m1 = 56 kg pushes backwards against the ground with his foot as he rides his skateboard. This exerts a horizontal force of magnitude F foot = = 18.5 N. The skateboard has m2 = 2.6 kg. a. Write an expression for the magnitude of the horizontal component of force that the ground exerts on the teenagers foot, F ground. b. Write an expression in terms to given quantities for the magnitude of the skateboard acceleration, a , while the teenager is pushing backwards on the ground? c. What is the numerical value of the magnitude of the acceleration, a, in m/s square?
calculate the magnitude of a normal force on a 22.7 kg for the following circumstances. c. the block is resting on the floor of an elevator that is accelerating upward at 2.53 m/s^2. d. the block is on the level surface and a force of 115 N is exerted on it at an angle of 40.8 degrees below the horizontal.
You are given the job of moving a refrigerator of mass 125 kg across a horizontal floor. The coefficient of static friction between the refrigerator and the floor is 0.49. What is the minimum force that is required to just set the refrigerator into motion? N